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Meta-Analysis
. 2019 Mar 25;3(3):CD013069.
doi: 10.1002/14651858.CD013069.pub2.

Cognitive training for people with mild to moderate dementia

Affiliations
Meta-Analysis

Cognitive training for people with mild to moderate dementia

Alex Bahar-Fuchs et al. Cochrane Database Syst Rev. .

Abstract

Background: Cognitive impairment, a defining feature of dementia, plays an important role in the compromised functional independence that characterises the condition. Cognitive training (CT) is an approach that uses guided practice on structured tasks with the direct aim of improving or maintaining cognitive abilities.

Objectives: • To assess effects of CT on cognitive and non-cognitive outcomes for people with mild to moderate dementia and their caregivers.• To compare effects of CT with those of other non-pharmacological interventions, including cognitive stimulation or rehabilitation, for people with mild to moderate dementia and their caregivers.• To identify and explore factors related to intervention and trial design that may be associated with the efficacy of CT for people with mild to moderate dementia and their caregivers.

Search methods: We searched ALOIS, the Cochrane Dementia and Cognitive Improvement Group Specialised Register, on 5 July 2018. ALOIS contains records of clinical trials identified through monthly searches of several major healthcare databases and numerous trial registries and grey literature sources. In addition to this, we searched MEDLINE, Embase, PsycINFO, CINAHL, LILACS, Web of Science Core Collection, ClinicalTrials.gov, and the World Health Organization's trials portal, ICTRP, to ensure that searches were comprehensive and up-to-date.

Selection criteria: We included randomised controlled trials (RCTs) that described interventions for people with mild to moderate dementia and compared CT versus a control or alternative intervention.

Data collection and analysis: We extracted relevant data from published manuscripts and through contact with trial authors if required. We assessed risk of bias using the Cochrane 'Risk of bias' tool. We divided comparison conditions into active or passive control conditions and alternative treatments. We used a large number of measures and data to evaluate 19 outcomes at end of treatment, as well as 16 outcomes at follow-up in the medium term; we pooled this information in meta-analyses. We calculated pooled estimates of treatment effect using a random-effects model, and we estimated statistical heterogeneity using a standard Chi² statistic. We graded the evidence using GradePro.

Main results: The 33 included trials were published between 1988 and 2018 and were conducted in 12 countries; most were unregistered, parallel-group, single-site RCTs, with samples ranging from 12 to 653 participants. Interventions were between two and 104 weeks long. We classified most experimental interventions as 'straight CT', but we classified some as 'augmented CT', and about two-thirds as multi-domain interventions. Researchers investigated 18 passive and 13 active control conditions, along with 15 alternative treatment conditions, including occupational therapy, mindfulness, reminiscence therapy, and others.The methodological quality of studies varied, but we rated nearly all studies as having high or unclear risk of selection bias due to lack of allocation concealment, and high or unclear risk of performance bias due to lack of blinding of participants and personnel.We used data from 32 studies in the meta-analysis of at least one outcome. Relative to a control condition, we found moderate-quality evidence showing a small to moderate effect of CT on our first primary outcome, composite measure of global cognition at end of treatment (standardised mean difference (SMD) 0.42, 95% confidence interval (CI) 0.23 to 0.62), and high-quality evidence showing a moderate effect on the secondary outcome of verbal semantic fluency (SMD 0.52, 95% CI 0.23 to 0.81) at end of treatment, with these gains retained in the medium term (3 to 12 months post treatment). In relation to many other outcomes, including our second primary outcome of clinical disease severity in the medium term, the quality of evidence was very low, so we were unable to determine whether CT was associated with any meaningful gains.When compared with an alternative treatment, we found that CT may have little to no effect on our first primary outcome of global cognition at end of treatment (SMD 0.21, 95% CI -0.23 to 0.64), but the quality of evidence was low. No evidence was available to assess our second primary outcome of clinical disease severity in the medium term. We found moderate-quality evidence showing that CT was associated with improved mood of the caregiver at end of treatment, but this was based on a single trial. The quality of evidence in relation to many other outcomes at end of treatment and in the medium term was too low for us to determine whether CT was associated with any gains, but we are moderately confident that CT did not lead to any gains in mood, behavioural and psychological symptoms, or capacity to perform activities of daily living.

Authors' conclusions: Relative to a control intervention, but not to a variety of alternative treatments, CT is probably associated with small to moderate positive effects on global cognition and verbal semantic fluency at end of treatment, and these benefits appear to be maintained in the medium term. Our certainty in relation to many of these findings is low or very low. Future studies should take stronger measures to mitigate well-established risks of bias, and should provide long-term follow-up to improve our understanding of the extent to which observed gains are retained. Future trials should also focus on direct comparison of CT versus alternative treatments rather than passive or active control conditions.

PubMed Disclaimer

Conflict of interest statement

Alex Bahar‐Fuchs: none known. Anthony Martyr: none known. Anita MY Goh: none known. Linda Clare: none known. Julieta Sabates: none known.

Figures

1
1
Study flow diagram.
2
2
Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
3
3
Risk of bias summary: review authors' judgements about each risk of bias item for each included study.
4
4
Forest plot of comparison: 1 Cognitive training vs control immediately post intervention, outcome: 1.1 Change in a global measure of cognition (composite).
5
5
Funnel plot of comparison: 1 Cognitive training vs control immediately post intervention, outcome: 1.1 Change in a global measure of cognition (composite).
6
6
Forest plot of comparison: 3 Cognitive training vs alternative treatment immediately post intervention, outcome: 3.1 Change in a global measure of cognition (composite).
7
7
Forest plot of comparison: 1 Cognitive training vs control immediately post intervention, outcome: 1.3 Change in a global measure of cognition.
8
8
Forest plot of comparison: 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), outcome: 2.5 Change in disease progression.
9
9
Forest plot of comparison: 1 Cognitive training vs control immediately post intervention, outcome: 1.6 Change in delayed memory.
10
10
Forest plot of comparison: 6 Cognitive training vs control immediately post intervention ‐ intervention dose, outcome: 6.9 Change in verbal letter fluency.
11
11
Forest plot of comparison: 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), outcome: 9.12 Change in verbal category fluency.
12
12
Forest plot of comparison: 1 Cognitive training vs control immediately post intervention, outcome: 1.16 Change in participants' mood.
13
13
Forest plot of comparison: 1 Cognitive training vs control immediately post intervention, outcome: 1.17 Change in capacity for activities of daily living.
14
14
Forest plot of comparison: 1 Cognitive training vs control immediately post intervention, outcome: 1.20 Participant burden (retention rates).
15
15
Forest plot of comparison: 1 Cognitive training vs control immediately post intervention, outcome: 1.23 Change in mood and well‐being (CAREGIVER).
1.1
1.1. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 1 Change in a global measure of cognition (composite).
1.2
1.2. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 2 Change in a global measure of cognition (composite)_zero correlation.
1.3
1.3. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 3 Change in a global measure of cognition.
1.4
1.4. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 4 Change in a global measure of cognition_zero correlation.
1.5
1.5. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 5 Change in disease progression.
1.6
1.6. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 6 Change in delayed memory.
1.7
1.7. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 7 Change in immediate memory.
1.8
1.8. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 8 Change in attention and working memory.
1.9
1.9. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 9 Change in language (naming).
1.10
1.10. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 10 Change in verbal letter fluency.
1.11
1.11. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 11 Change in verbal category fluency.
1.12
1.12. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 12 Change in executive function.
1.13
1.13. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 13 Change in speed of information processing.
1.14
1.14. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 14 Change in meta cognition (self‐reported).
1.15
1.15. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 15 Change in meta cognition (informant‐reported).
1.16
1.16. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 16 Change in participants' mood.
1.17
1.17. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 17 Change in capacity for activities of daily living.
1.18
1.18. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 18 Change in general health and quality of life.
1.19
1.19. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 19 Change in behavioural and psychological symptoms of dementia (BPSD).
1.20
1.20. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 20 Participant burden (retention rates).
1.21
1.21. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 21 Change in burden of care (CAREGIVER).
1.22
1.22. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 22 Change in quality of life (CAREGIVER).
1.23
1.23. Analysis
Comparison 1 Cognitive training vs control immediately post intervention, Outcome 23 Change in mood and well‐being (CAREGIVER).
2.1
2.1. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 1 Change in a global measure of cognition (composite).
2.2
2.2. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 2 Change in a global measure of cognition (composite)_zero correlation.
2.3
2.3. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 3 Change in a global measure of cognition.
2.4
2.4. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 4 Change in a global measure of cognition (zero correlation).
2.5
2.5. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 5 Change in disease progression.
2.6
2.6. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 6 Change in disease progression (zero correlation).
2.7
2.7. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 7 Change in delayed memory.
2.8
2.8. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 8 Change in immediate memory.
2.9
2.9. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 9 Change in attention and working memory.
2.10
2.10. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 10 Change in language (naming).
2.11
2.11. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 11 Change in verbal letter fluency.
2.12
2.12. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 12 Change in verbal category fluency.
2.13
2.13. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 13 Change in executive function.
2.14
2.14. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 14 Change in speed of information processing.
2.15
2.15. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 15 Change in meta cognition (self‐reported).
2.16
2.16. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 16 Change in meta cognition (informant‐reported).
2.17
2.17. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 17 Change in participants' mood.
2.18
2.18. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 18 Change in capacity for activities of daily living.
2.19
2.19. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 19 Change in general health and quality of life.
2.20
2.20. Analysis
Comparison 2 Cognitive training vs control in the medium term (3 to 12 months post intervention), Outcome 20 Change in behavioural and psychological symptoms of dementia (BPSD).
3.1
3.1. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 1 Change in a global measure of cognition (composite).
3.2
3.2. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 2 Change in a global measure of cognition (composite)_zero correlation.
3.3
3.3. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 3 Change in a global measure of cognition.
3.4
3.4. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 4 Change in a global measure of cognition_zero correlation.
3.5
3.5. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 5 Change in disease progression.
3.6
3.6. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 6 Change in delayed memory.
3.7
3.7. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 7 Change in immediate memory.
3.8
3.8. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 8 Change in attention and working memory.
3.9
3.9. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 9 Change in language (naming).
3.10
3.10. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 10 Change in verbal letter fluency.
3.11
3.11. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 11 Change in verbal category fluency.
3.12
3.12. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 12 Change in executive function.
3.13
3.13. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 13 Change in speed of information processing.
3.16
3.16. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 16 Change in participants' mood.
3.17
3.17. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 17 Change in capacity for activities of daily living.
3.18
3.18. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 18 Change in general health and quality of life.
3.19
3.19. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 19 Change in behavioural and psychological symptoms of dementia (BPSD).
3.20
3.20. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 20 Participant burden (retention rates).
3.21
3.21. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 21 Change in burden of care (CAREGIVER).
3.22
3.22. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 22 Change in quality of life (CAREGIVER).
3.23
3.23. Analysis
Comparison 3 Cognitive training vs alternative treatment immediately post intervention, Outcome 23 Change in mood and well‐being (CAREGIVER).
4.1
4.1. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 1 Change in a global measure of cognition (composite).
4.2
4.2. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 2 Change in a global measure of cognition (composite)_zero correlation.
4.3
4.3. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 3 Change in a global measure of cognition.
4.6
4.6. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 6 Change in delayed memory.
4.7
4.7. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 7 Change in immediate memory.
4.8
4.8. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 8 Change in attention and working memory.
4.9
4.9. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 9 Change in language (naming).
4.10
4.10. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 10 Change in verbal letter fluency.
4.11
4.11. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 11 Change in verbal category fluency.
4.12
4.12. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 12 Change in executive function.
4.13
4.13. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 13 Change in speed of information processing.
4.16
4.16. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 16 Change in participants' mood.
4.18
4.18. Analysis
Comparison 4 Cognitive training vs alternative treatment in the medium term (3 to 12 months post intervention), Outcome 18 Change in general health and quality of life.
5.1
5.1. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 1 Change in a global measure of cognition.
5.2
5.2. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 2 Change in a global measure of cognition_zero correlation.
5.3
5.3. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 3 Change in a global measure of cognition (composite).
5.4
5.4. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
5.5
5.5. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 5 Change in immediate memory.
5.6
5.6. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 6 Change in delayed memory.
5.7
5.7. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 7 Change in attention and working memory.
5.8
5.8. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 8 Change in language (naming).
5.9
5.9. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 9 Change in verbal letter fluency.
5.10
5.10. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 10 Change in speed of information processing.
5.11
5.11. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 11 Change in executive function.
5.12
5.12. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 12 Change in verbal category fluency.
5.13
5.13. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 13 Change in meta cognition (self‐reported).
5.14
5.14. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 14 Change in meta cognition (informant‐reported).
5.15
5.15. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 15 Change in participants' mood.
5.16
5.16. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 16 Change in capacity for activities of daily living.
5.17
5.17. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 17 Change in general health and quality of life.
5.18
5.18. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 18 Change in behavioural and psychological symptoms of dementia (BPSD).
5.19
5.19. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 19 Change in disease progression.
5.20
5.20. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 20 Change in burden of care (CAREGIVER).
5.21
5.21. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 21 Change in quality of life (CAREGIVER).
5.22
5.22. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 22 Change in mood and well‐being (CAREGIVER).
5.23
5.23. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 23 Participant burden (retention rates).
5.24
5.24. Analysis
Comparison 5 Cognitive training vs control immediately post intervention ‐ risk of bias, Outcome 24 Change in general health and quality of life.
6.1
6.1. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 1 Change in a global measure of cognition.
6.2
6.2. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 2 Change in a global measure of cognition_zero correlation.
6.3
6.3. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 3 Change in a global measure of cognition (composite).
6.4
6.4. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
6.5
6.5. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 5 Change in immediate memory.
6.6
6.6. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 6 Change in delayed memory.
6.7
6.7. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 7 Change in attention and working memory.
6.8
6.8. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 8 Change in language (naming).
6.9
6.9. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 9 Change in verbal letter fluency.
6.10
6.10. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 10 Change in speed of information processing.
6.11
6.11. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 11 Change in executive function.
6.12
6.12. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 12 Change in verbal category fluency.
6.13
6.13. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 13 Change in meta cognition (self‐reported).
6.14
6.14. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 14 Change in meta cognition (informant‐reported).
6.15
6.15. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 15 Change in participants' mood.
6.16
6.16. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 16 Change in capacity for activities of daily living.
6.17
6.17. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 17 Change in disease progression.
6.18
6.18. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 18 Change in behavioural and psychological symptoms of dementia (BPSD).
6.19
6.19. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 19 Change in attention and working memory.
6.20
6.20. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 20 Change in burden of care (CAREGIVER).
6.21
6.21. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 21 Change in quality of life (CAREGIVER).
6.22
6.22. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 22 Change in mood and well‐being (CAREGIVER).
6.23
6.23. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 23 Participant burden (retention rates).
6.24
6.24. Analysis
Comparison 6 Cognitive training vs control immediately post intervention ‐ intervention dose, Outcome 24 Change in general health and quality of life.
7.1
7.1. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 1 Change in a global measure of cognition.
7.2
7.2. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 2 Change in a global measure of cognition_zero correlation.
7.3
7.3. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 3 Change in a global measure of cognition (composite).
7.4
7.4. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
7.5
7.5. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 5 Change in immediate memory.
7.6
7.6. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 6 Change in delayed memory.
7.7
7.7. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 7 Change in attention and working memory.
7.8
7.8. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 8 Change in language (naming).
7.9
7.9. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 9 Change in verbal letter fluency.
7.10
7.10. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 10 Change in speed of information processing.
7.11
7.11. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 11 Change in executive function.
7.12
7.12. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 12 Change in verbal category fluency.
7.13
7.13. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 13 Change in meta cognition (self‐reported).
7.14
7.14. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 14 Change in meta cognition (informant‐reported).
7.15
7.15. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 15 Change in participants' mood.
7.16
7.16. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 16 Change in capacity for activities of daily living.
7.17
7.17. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 17 Change in disease progression.
7.18
7.18. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 18 Change in behavioural and psychological symptoms of dementia (BPSD).
7.19
7.19. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 19 Participant burden (retention rates).
7.20
7.20. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 20 Change in burden of care (CAREGIVER).
7.21
7.21. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 21 Change in quality of life (CAREGIVER).
7.22
7.22. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 22 Change in mood and well‐being (CAREGIVER).
7.23
7.23. Analysis
Comparison 7 Cognitive training vs control immediately post intervention ‐ intervention duration, Outcome 23 Change in general health and quality of life.
8.1
8.1. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 1 Change in a global measure of cognition.
8.2
8.2. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 2 Change in a global measure of cognition_zero correlation.
8.3
8.3. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 3 Change in a global measure of cognition (composite).
8.4
8.4. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
8.5
8.5. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 5 Change in immediate memory.
8.6
8.6. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 6 Change in delayed memory.
8.7
8.7. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 7 Change in attention and working memory.
8.8
8.8. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 8 Change in language (naming).
8.9
8.9. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 9 Change in verbal letter fluency.
8.10
8.10. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 10 Change in speed of information processing.
8.11
8.11. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 11 Change in executive function.
8.12
8.12. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 12 Change in verbal category fluency.
8.13
8.13. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 13 Change in meta cognition (self‐reported).
8.14
8.14. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 14 Change in meta cognition (informant‐reported).
8.15
8.15. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 15 Change in participants' mood.
8.16
8.16. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 16 Change in capacity for activities of daily living.
8.17
8.17. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 17 Change in disease progression.
8.18
8.18. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 18 Change in behavioural and psychological symptoms of dementia (BPSD).
8.19
8.19. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 19 Participant burden (retention rates).
8.20
8.20. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 20 Change in burden of care (CAREGIVER).
8.21
8.21. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 21 Change in quality of life (CAREGIVER).
8.22
8.22. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 22 Change in mood and well‐being (CAREGIVER).
8.23
8.23. Analysis
Comparison 8 Cognitive training vs control immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 23 Change in general health and quality of life.
9.1
9.1. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 1 Change in a global measure of cognition.
9.2
9.2. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 2 Change in a global measure of cognition_zero correlation.
9.3
9.3. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 3 Change in a global measure of cognition (composite).
9.4
9.4. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
9.5
9.5. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 5 Change in immediate memory.
9.6
9.6. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 6 Change in delayed memory.
9.7
9.7. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 7 Change in attention and working memory.
9.8
9.8. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 8 Change in language (naming).
9.9
9.9. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 9 Change in verbal letter fluency.
9.10
9.10. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 10 Change in speed of information processing.
9.11
9.11. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 11 Change in executive function.
9.12
9.12. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 12 Change in verbal category fluency.
9.13
9.13. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 13 Change in meta cognition (self‐reported).
9.14
9.14. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 14 Change in meta cognition (informant‐reported).
9.15
9.15. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 15 Change in participants' mood.
9.16
9.16. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 16 Change in capacity for activities of daily living.
9.17
9.17. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 17 Change in disease progression.
9.18
9.18. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 18 Change in behavioural and psychological symptoms of dementia (BPSD).
9.19
9.19. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 19 Participant burden (retention rates).
9.20
9.20. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 20 Change in burden of care (CAREGIVER).
9.21
9.21. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 21 Change in quality of life (CAREGIVER).
9.22
9.22. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 22 Change in mood and well‐being (CAREGIVER).
9.23
9.23. Analysis
Comparison 9 Cognitive training vs control immediately post intervention ‐ type of CT (multi‐domain vs single domain), Outcome 23 Change in general health and quality of life.
10.1
10.1. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 1 Change in a global measure of cognition.
10.2
10.2. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 2 Change in a global measure of cognition_zero correlation.
10.3
10.3. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 3 Change in a global measure of cognition (composite).
10.4
10.4. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
10.5
10.5. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 5 Change in immediate memory.
10.6
10.6. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 6 Change in delayed memory.
10.7
10.7. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 7 Change in attention and working memory.
10.8
10.8. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 8 Change in language (naming).
10.9
10.9. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 9 Change in verbal letter fluency.
10.10
10.10. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 10 Change in speed of information processing.
10.11
10.11. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 11 Change in executive function.
10.12
10.12. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 12 Change in verbal category fluency.
10.13
10.13. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 13 Change in meta cognition (self‐reported).
10.14
10.14. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 14 Change in meta cognition (informant‐reported).
10.15
10.15. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 15 Change in participants' mood.
10.16
10.16. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 16 Change in capacity for activities of daily living.
10.17
10.17. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 17 Change in disease progression.
10.18
10.18. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 18 Change in behavioural and psychological symptoms of dementia (BPSD).
10.19
10.19. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 19 Participant burden (retention rates).
10.20
10.20. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 20 Change in burden of care (CAREGIVER).
10.21
10.21. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 21 Change in quality of life (CAREGIVER).
10.22
10.22. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 22 Change in mood and well‐being (CAREGIVER).
10.23
10.23. Analysis
Comparison 10 Cognitive training vs control immediately post intervention ‐ type of control (passive vs active), Outcome 23 Change in general health and quality of life.
11.1
11.1. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 1 Change in a global measure of cognition.
11.2
11.2. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 2 Change in a global measure of cognition_zero correlation.
11.3
11.3. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 3 Change in a global measure of cognition (composite).
11.4
11.4. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
11.5
11.5. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 5 Change in immediate memory.
11.6
11.6. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 6 Change in delayed memory.
11.7
11.7. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 7 Change in attention and working memory.
11.8
11.8. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 8 Change in language (naming).
11.9
11.9. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 9 Change in verbal letter fluency.
11.10
11.10. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 10 Change in verbal category fluency.
11.11
11.11. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 11 Change in executive function.
11.14
11.14. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 14 Change in participants' mood.
11.15
11.15. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 15 Change in capacity for activities of daily living.
11.16
11.16. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 16 Change in behavioural and psychological symptoms of dementia (BPSD).
11.17
11.17. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 17 Change in disease progression.
11.18
11.18. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 18 Participant burden (retention rates).
11.19
11.19. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 19 Change in mood and well‐being (CAREGIVER).
11.20
11.20. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 20 Change in burden of care (CAREGIVER).
11.21
11.21. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 21 Change in quality of life (CAREGIVER).
11.22
11.22. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 22 Change in speed of information processing.
11.23
11.23. Analysis
Comparison 11 Cognitive training vs alternative treatment immediately post intervention ‐ intervention dose, Outcome 23 Change in general health and quality of life.
12.1
12.1. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 1 Change in a global measure of cognition.
12.2
12.2. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 2 Change in a global measure of cognition_zero correlation.
12.3
12.3. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 3 Change in a global measure of cognition (composite).
12.4
12.4. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
12.5
12.5. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 5 Change in immediate memory.
12.6
12.6. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 6 Change in delayed memory.
12.7
12.7. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 7 Change in attention and working memory.
12.8
12.8. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 8 Change in language (naming).
12.9
12.9. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 9 Change in verbal letter fluency.
12.10
12.10. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 10 Change in verbal category fluency.
12.11
12.11. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 11 Change in executive function.
12.14
12.14. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 14 Change in participants' mood.
12.15
12.15. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 15 Change in capacity for activities of daily living.
12.16
12.16. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 16 Change in behavioural and psychological symptoms of dementia (BPSD).
12.17
12.17. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 17 Change in disease progression.
12.18
12.18. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 18 Participant burden (retention rates).
12.19
12.19. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 19 Change in mood and well‐being (CAREGIVER).
12.20
12.20. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 20 Change in burden of care (CAREGIVER).
12.21
12.21. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 21 Change in quality of life (CAREGIVER).
12.22
12.22. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 22 Change in speed of information processing.
12.23
12.23. Analysis
Comparison 12 Cognitive training vs alternative treatment immediately post intervention ‐ type of CT (traditional vs augmented), Outcome 23 Change in general health and quality of life.
13.1
13.1. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 1 Change in a global measure of cognition.
13.2
13.2. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 2 Change in a global measure of cognition (zero correlation).
13.3
13.3. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 3 Change in a global measure of cognition (composite).
13.4
13.4. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 4 Change in a global measure of cognition (composite)_zero correlation.
13.5
13.5. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 5 Change in disease progression (zero correlation).
13.6
13.6. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 6 Change in disease progression.
13.7
13.7. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 7 Change in immediate memory.
13.8
13.8. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 8 Change in delayed memory.
13.9
13.9. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 9 Change in language (naming).
13.10
13.10. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 10 Change in verbal letter fluency.
13.11
13.11. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 11 Change in verbal category fluency.
13.12
13.12. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 12 Change in attention and working memory.
13.13
13.13. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 13 Change in speed of information processing.
13.14
13.14. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 14 Change in meta cognition (self‐reported).
13.15
13.15. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 15 Change in meta cognition (informant‐reported).
13.16
13.16. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 16 Change in capacity for activities of daily living.
13.17
13.17. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 17 Change in behavioural and psychological symptoms of dementia (BPSD).
13.18
13.18. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 18 Change in general health and quality of life.
13.19
13.19. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 19 Change in participants' mood.
13.23
13.23. Analysis
Comparison 13 Cognitive training vs control in the medium term (3 to 12 months post intervention) ‐ follow‐up period, Outcome 23 Change in executive function.

Update of

  • doi: 10.1002/14651858.CD013069

References

References to studies included in this review

Amieva 2016 {published and unpublished data}
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Cahn‐Weiner 2003 {published data only}
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Davis 2001 {published data only}
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de Vreese 1998 {published and unpublished data}
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Fernández‐Calvo 2011 {published and unpublished data}
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Galante 2007 {published data only (unpublished sought but not used)}
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Giovagnoli 2017 {published data only}
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Giuli 2016 {published data only (unpublished sought but not used)}
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Goudour 2011 {published and unpublished data}
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Heiss 1993 {published data only}
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Jelcic 2012 {published data only (unpublished sought but not used)}
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Jelcic 2014 {published data only (unpublished sought but not used)}
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Kallio 2018 {published and unpublished data}
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Kao 2016 {published data only (unpublished sought but not used)}
    1. Kao CC, Lin LC, Wu, SC, Lin, KN, Liu, CK. Effectiveness of different memory training programs on improving hyperphagic behaviors of residents with dementia: a longitudinal single‐blind study. Clinical Interventions in Aging 2016;11:707. - PMC - PubMed
Kawashima 2005 {published and unpublished data}
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Lee 2013 {published data only}
    1. Lee GY, Yip, CC, Yu EC, Man DW. Evaluation of a computer‐assisted errorless learning‐based memory training program for patients with early Alzheimer's disease in Hong Kong: a pilot study. Clinical Interventions in Aging 2013;8:623‐33. - PMC - PubMed
Mapelli 2013 {published data only (unpublished sought but not used)}
    1. Mapelli D, Rosa E, Nocita R, Sava D. Cognitive stimulation in patients with dementia: randomized controlled trial. Dementia and Geriatric Cognitive Disorders Extra 2013;3:263‐71. - PMC - PubMed
Neely 2009 {published data only}
    1. Neely AS, Vikstrom S, Josephsson S. Collaborative memory intervention in dementia: caregiver participation matters. Neuropsychological Rehabilitation 2009;19(5):696‐715. - PubMed
Quayhagen 1995 {published data only}
    1. Corbeil RR, Quayhagen MP, Quayhagen M. Intervention effects on dementia caregiving interaction: a stress‐adaptation modeling approach. Journal of Aging and Health 1999;11(1):79‐95. - PubMed
    1. Quayhagen MP, Quayhagen M, Corbeil RR, Roth PA, Rodgers JA. A dyadic remediation program for care recipients with dementia. Nursing Research 1995;44(3):153‐9. - PubMed
Quayhagen 2000 {published data only}
    1. Quayhagen MP, Quayhagen M, Corbeil RR, Hendrix RC, Jackson JE, Snyder L, et al. Coping with dementia: evaluation of four nonpharmacologic interventions. International Psychogeriatrics 2000;12(2):249‐65. - PubMed
Quintana Hernandez 2014 {published data only}
    1. Hernández DJQ, Barrachina MTM, Fernández II, Pino AS, Hernández JR. Effects of a neuropsychology program based on mindfulness on Alzheimer's disease: randomized double‐blind clinical study [Efectos de un programa de intervención neuropsicológica basado en mindfulness sobre la enfermedad de Alzheimer: ensayo clínico aleatorizado a doble ciego]. Revista Española de Geriatría y Gerontología 2014;49:165‐72. - PubMed
Serino 2017 {published and unpublished data}
    1. Serino S, Pedroli E, Tuena C, Leo G, Stramba‐Badiale M, Riva G, et al. A novel virtual reality‐based training protocol for the enhancement of the “mental frame syncing” in individuals with Alzheimer's disease: a development‐of‐concept trial. Frontiers in Aging Neuroscience 2017;9:240. - PMC - PubMed
Trebbastoni 2018 {published and unpublished data}
    1. Trebbastoni A, Imbriano L, Podda L, Rendace L, Sacchetti ML, Lena C, et al. Cognitive training in patients with Alzheimer's disease: findings of a 12‐month randomized controlled trial. Current Alzheimer Research 2018;15(5):452‐61. - PubMed
Tsantali 2017 {published data only (unpublished sought but not used)}
    1. Tsantali E, Economidis D, Rigopoulou S. Testing the benefits of cognitive training vs cognitive stimulation in mild Alzheimer’s disease: a randomised controlled trial. Brain Impairment 2017;18(2):188‐96.
Venturelli 2016 {published data only (unpublished sought but not used)}
    1. Venturelli M, Sollima A, Cè E, Limonta E, Bisconti AV, Brasioli A, et al. Effectiveness of exercise‐ and cognitive‐based treatments on salivary cortisol levels and sundowning syndrome symptoms in patients with Alzheimer’s disease. Journal of Alzheimer's Disease 2016;53(4):1631‐40. - PubMed

References to studies excluded from this review

Actrn12616000827437p 2016 {published data only}
    1. ACTRN12616000827437. Individual cognitive stimulation therapy for people with mild to moderate dementia. https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=370912 2016.
Actrn 2015 {published data only}
    1. ACTRN. The effect of computerised cognitive training on memory outcomes in older adults with documented cognitive decline. Unknown 2015.
Alimova 1990 {published data only}
    1. Alimova R. Drug‐free stimulation of memory in senile patients with initial vascular dementia [Russian]. Zhurnal Nevropatologii i Psikhiatrii imeni S S Korsakova 1990;90(0044‐4588):125‐9. - PubMed
Alves 2014 {published data only}
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Anderson 2001 {published data only}
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Angelucci 2015 {published data only}
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Avila 2007 {published data only}
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Baglio 2015 {published data only}
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Bamidis 2015 {published data only}
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Biasutti 2018 {published data only}
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Boron 2007 {published data only}
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Brinkman 1982 {published data only}
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Brunelle 2015 {published data only}
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Buettner 2011 {published data only}
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Burgener 2009 {published data only}
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Buschert 2011 {published data only}
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Ceccato 2012 {published data only}
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Chapman 2004 {published data only}
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Cheng 2015 {published data only}
    1. Cheng CPW, Chan SSM, Mak ADP, Chan WC, Cheng ST. Would transcranial direct current stimulation (tDCS) enhance the effects of working memory training in older adults with mild neurocognitive disorder due to Alzheimer's disease: study protocol for a randomized controlled trial. Trials 2015;16(1):479. - PMC - PubMed
Chew 2015 {published data only}
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Choi 2012 {published data only}
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Cipriani 2006 {published data only}
    1. Cipriani G, Bianchetti A, Trabucchi M. Outcomes of a computer‐based cognitive rehabilitation program on Alzheimer's disease patients compared with those on patients affected by mild cognitive impairment. Archives of Gerontology and Geriatrics 2006;43(3):327‐35. - PubMed
Clare 2013 {published data only}
    1. Clare L, Bayer A, Burns A, Corbett A, Jones R, Knapp M. Goal‐oriented cognitive rehabilitation in early‐stage dementia: study protocol for a multi‐centre single‐blind randomised controlled trial (GREAT). Trials 2013;14(1):152. - PMC - PubMed
Contador 2016 {published data only}
    1. Contador I, Fernandez‐Calvo B, Ramos F, Olazarán J. Influence of educational attainment on cognition‐based intervention programs for persons with mild Alzheimer's disease. Journal of the International Neuropsychological Society 2016;22(5):577‐82. - PubMed
Costa 2014 {published data only}
    1. Costa A, Peppe A, Serafini F, Zabberoni S, Barban F, Caltagirone C, et al. Prospective memory performance of patients with Parkinson's disease depends on shifting aptitude: evidence from cognitive rehabilitation. Journal of the International Neuropsychological Society 2014;20(7):717‐26. - PubMed
Costa 2015 {published data only}
    1. Costa NB, Aramaki F, Cecato J, Stella B, Araujo I, Aprahamian I, et al. Benefits of a computer‐based cognitive training program for elderly subjects with mild Alzheimer's disease. International Psychogeriatrics 2015;27:S119.
Danassi 2015 {published data only}
    1. Danassi E. SOCIABLE: a surface computing platform empowering effective cognitive training for healthy and cognitively impaired elderly. In: Vlamos P, Alexiou A editor(s). Advances in Experimental Medicine and Biology. 821. Danassi E, 2015:129‐130. - PubMed
De Luca 2016 {published data only}
    1. Luca R, Bramanti A, Cola MC, Leonardi S, Torrisi M, Aragona B, et al. Cognitive training for patients with dementia living in a Sicilian nursing home: a novel web‐based approach. Neurological Sciences 2016;37(10):1685‐91. - PubMed
De Paula 2013 {published data only}
    1. Paula E, Coutinho A, Nunes R, Saran L, Prando S, Ono C, et al. Evaluation of cerebral perfusion changes through spect in people with mild Alzheimer's disease after a cognitive rehabilitation program. Alzheimer's & Dementia: Journal of the Alzheimer's Association 2013;9(4):P73.
Dwolatzky 2014 {published data only}
    1. Dwolatzky T, Tractinsky N, Sarne‐Fleischmann V. Computer‐supported personal interventions for older people with cognitive impairment and dementia [abstract]. (Sarne‐Fleischmann V. Doctoral dissertation, Ben‐Gurion University of the Negev). 2014.
Eckroth‐Bucher 2009 {published data only}
    1. Eckroth‐Bucher M, Siberski J. Preserving cognition through an integrated cognitive stimulation and training program. American Journal of Alzheimer's Disease & Other Dementias 2009;24(3):234‐45. - PMC - PubMed
Edwards 2013 {published data only}
    1. Edwards JD, Hauser RA, O'Connor ML, Valdés EG, Zesiewicz TA, Uc EY. Randomized trial of cognitive speed of processing training in Parkinson disease. Neurology 2013;81(15):1284‐90. - PMC - PubMed
Faggian 2007 {published data only}
    1. Faggian S. An intervention protocol on cognitive abilities for subjects with severe cognitive impairment [Protocollo di stimolazione cognitiva per soggetti con deterioramento cognitivo severo]. Giornale Di 2007;55:134‐43.
Fane 2013 {published data only}
    1. Fane M, Lysaker P, Fiszdon J, Twamley E, Gooding A, Baginski C, et al. Cognitive behavioral therapy to enhance cognitive rehabilitation efficacy in Alzheimer's disease [abstract]. Alzheimer's & Dementia: Journal of the Alzheimer's Association 2013;9(4):P495.
Farina 2002 {published data only}
    1. Farina E, Fioravanti R, Chiavari L, Imbornone E, Alberoni M, Pomati S, et al. Comparing two programs of cognitive training in Alzheimer's disease: a pilot study. Acta Neurologica Scandinavica 2002;105(5):365‐71. - PubMed
Farina 2006 {published data only}
    1. Farina E, Mantovani F, Fioravanti R, Pignatti R, Chiavari L, Imbornone E, et al. Evaluating two group programmes of cognitive training in mild‐to‐moderate AD: is there any difference between a 'global' stimulation and a 'cognitive‐specific' one?. Aging and Mental Health 2006;10(3):211‐8. - PubMed
Fernandez‐Calvo 2010 {published data only}
    1. Fernandez‐Calvo B, Contador l, Serna A, Menezes de Lucena V, Ramos F. The effect of an individual or group intervention format in cognitive stimulation of patients with Alzheimer's disease. Revista de Psicopatología y Psicología Clínica 2010;15(2):115‐23.
Fernández‐Calvo 2015 {published data only}
    1. Fernández‐Calvo B, Contador I, Ramos F, Olazarán J, Mograbi DC, Morris RG. Effect of unawareness on rehabilitation outcome in a randomised controlled trial of multicomponent intervention for patients with mild Alzheimer's disease. Neuropsychological Rehabilitation 2015;25(3):448‐77. - PubMed
Fisher 2016 {published data only}
    1. Fisher BC, Garges DM. Cognitive training/therapuetic program for memory/ neuropsychological deficits: ongoing research in a dementia population. Alzheimer's & Dementia: The Journal of the Alzheimer's Association. 2016; Vol. 12 (7):P787.
Gaitan 2013 {published data only}
    1. Gaitan A, Garolera M, Cerulla N, Chico G, Rodriguez‐Querol, Canela‐Soler J. Efficacy of an adjunctive computer‐based cognitive training program in amnestic mild cognitive impairment and Alzheimer's disease: a single‐blind, randomized clinical trial. International Journal of Geriatric Psychiatry 2013;28(1):91‐9. - PubMed
Giordano 2010 {published data only}
    1. Giordano M, Dominguez LJ, Vitrano T, Curatolo M, Ferlisi A, Prima A, et al. Combination of intensive cognitive rehabilitation and donepezil therapy in Alzheimer's disease (AD). Archives of Gerontology and Geriatrics 2010;51(3):245‐9. - PubMed
Graessel 2011 {published data only}
    1. Graessel E, Stemmer R, Eichenseer B, Pickel S, Donath C, Kornhuber J, Luttenberg K. Non‐pharmacological, multicomponent group therapy in patients with degenerative dementia: a 12‐month randomzied, controlled trial. BMC Medicine 2011;9(1):129. - PMC - PubMed
Grohman 2006 {published data only}
    1. Grohman K, Fals‐Stewart W, Donnelly K. Improving treatment response of cognitively impaired veterans with neuropsychological rehabilitation. Brain and Cognition 2006;60(2):203‐4. - PubMed
Günther 2003 {published data only}
    1. Günther VK, Schäfer P, Holzner BJ, Kemmler GW. Long‐term improvements in cognitive performance through computer‐assisted cognitive training: a pilot study in a residential home for older people. Aging & Mental Health 2003;7(3):200‐6. - PubMed
Han 2017 {published data only}
    1. Han JW, Lee H, Hong JW, Kim J, Kim T, Byun HJ, et al. Multimodal cognitive enhancement therapy for patients with mild cognitive impairment and mild dementia: a multi‐center, randomized, controlled, double‐blind, crossover trial. Journal of Alzheimer's Disease 2017;55(2):787‐96. - PubMed
Hayashi 2009 {published data only}
    1. Hayashi N, Kazui H, Morihara T, Yokokoji K, Kono A, Hata Y, et al. Cognitive training on elderly Japanese in Osaka: major outcome (ADAS) from prospective, randomized, open, blinded‐endpoint trial. Alzheimer's & Dementia 2009;1(1552‐60):P407‐8.
Helcer 2012 {published data only}
    1. Helcer J, Santorelli G, Choi J. Cognitive behavioral therapy to combat hopelessness and low selfefficacy in Alzheimer's disease [abstract]. Alzheimer's & Dementia. 2012; Vol. 1), issue 1552‐60:P376.
Hochhalter 2004 {published data only}
    1. Hochhalter AK. Effectiveness of adjusted rehearsal training as a memory intervention for older adults with dementia. Unknown 2004.
Hofmann 2003 {published data only}
    1. Hofmann M, Rosler A, Schwarz W, Müller‐Spahn F, Kräuchi K, Hock C, et al. Interactive computer‐training as a therapeutic tool in Alzheimer's disease. Comprehensive Psychiatry 2003;44(3):213‐9. - PubMed
Hopman‐Rock 1999 {published data only}
    1. Hopman‐Rock M, Staats PG, Tak EC, Dröes RM. The effects of a psychomotor activation programme for use in groups of cognitively impaired people in homes for the elderly. International Journal of Geriatric Psychiatry 1999;14(8):633‐42. - PubMed
Huntley 2017 {published data only}
    1. Huntley JD, Hampshire A, Bor D, et al. Adaptive working memory strategy training in early Alzheimer's disease: randomised controlled trial. British Journal of Psychiatry 2017;210(1):61‐6. - PMC - PubMed
Hwang 2012 {published data only}
    1. Hwang HR, Choi SH, Yoon DH, Yoon BN, Suh YJ, Lee D, et al. The effect of cognitive training in patients with mild cognitive impairment and early Alzheimer's disease: a preliminary study. Journal of Clinical Neurology 2012;8(3):190‐7. - PMC - PubMed
Hwang 2015 {published data only}
    1. Hwang JH, Cha HG, Cho HS. The effects of cognitive rehabilitation on Alzheimer's dementia patients' cognitive assessment reference diagnosis system performance based on level of cognitive functioning. Journal of Physical Therapy Science 2015;27(9):2875‐7. - PMC - PubMed
Hyer 2014 {published data only}
    1. Hyer L, Scott C, Lyles J, Dhabliwala J, McKenzie L. Memory intervention: the value of a clinical holistic program for older adults with memory impairments. Aging & Mental Health 2014;18(2):169‐78. - PubMed
Israel 1987 {published data only}
    1. Israel L, Dell'Accia E, Martin G, Hugonot R. Ginkgo biloba extract and memory training programs ‐ comparative assessment on elderly outpatients. Psychologie Médicale 1987;19:1431‐9.
Jang 2015 {published data only}
    1. Jang JS, Lee JS, Yoo DH. Effects of spaced retrieval training with errorless learning in the rehabilitation of patients with dementia. Journal of Physical Therapy Science 2015;27(9):2735‐8. - PMC - PubMed
Jin 2015 {published data only}
    1. Lee J, Lee B, Park Y, Kim Y. Effects of combined fine motor skill and cognitive therapy to cognition, degree of dementia, depression, and activities of daily living in the elderly with Alzheimer's disease. Journal of Physical Therapy Science 2015;27(10):3151‐4. - PMC - PubMed
Kanaan 2014 {published data only}
    1. Kanaan SF, McDowd JM, Colgrove Y, Burns JM, Gajewski B, Pohl PS. Feasibility and efficacy of intensive cognitive training in early‐stage Alzheimer's disease. American Journal of Alzheimer's Disease & Other Dementias 2014;29(2):150‐8. - PMC - PubMed
Kang 2010 {published data only}
    1. Kang HY, Bae YS, Kim EH, Lee KS, Chae MJ, Ju RA. An integrated dementia intervention for Korean older adults. Journal of Psychosocial Nursing and Mental Health Services 2010;48(12):42‐50. - PubMed
Kawashima 2015 {published data only}
    1. Kawashima R, Hiller DL, Sereda SL, Antonczak M, Serger K, Gannon D, et al. SAIDO learning as a cognitive intervention for dementia care: a preliminary study. Journal of the American Medical Directors Association 2015;16(1):56‐62. - PubMed
Kessels 2009 {published data only}
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Khurandy 2016 {published data only}
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Kim, 2016 {published data only}
    1. Kim MJ, Han CW, Min, KY, Cho CY, Lee CW, Ogawa Y, et al. Physical exercise with multicomponent cognitive intervention for older adults with Alzheimer's disease: a 6‐month randomized controlled trial. Dementia and Geriatric Cognitive Disorders Extra 2016;6(2):222‐32. - PMC - PubMed
Kim 2005 {published data only}
    1. Kim MY, Lee KS, Choi JS, Ki, HB, Park CI. Effectiveness of cognitive training based on virtual reality for the elderly [Korean]. Journal of Korean Academy of Rehabilitation Medicine 2005;29(4):424‐33.
Kovach 2018 {published data only}
    1. Kovach CR, Evans CR, Satteli L, Rosenau K, Gopalakrishnan S. Feasibility and pilot testing of a mindfulness intervention for frail older adults and individuals with dementia. Research in Gerontological Nursing 2018;11(3):137‐50. - PubMed
Latorre 2010 {published data only}
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Lee, 2016 {published data only}
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Lee, 2016a {published data only}
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Maci, a {published data only}
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Maci 2012 {published data only}
    1. Maci T, Pira FL, Quattrocchi G, Nuovo SD, Perciavalle V, Zappia M. Physical and cognitive stimulation in Alzheimer Disease. The GAIA Project: a pilot study. American Journal of Alzheimer's Disease & Other Dementias 2012;27(2):107‐13. - PMC - PubMed
Meguro 2008 {published data only}
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Middelstadt 2016 {published data only}
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NCT 2005 {published data only}
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NCT 2011 {published data only}
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NCT 2012 {published data only}
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NCT 2013 {published data only}
    1. NCT01825317. Effect of NeuroAD on Alzheimer patients. https://protect‐au.mimecast.com/s/GKuNCMwvygsJAJLpf99K3Ke?domain=clinicaltrials.gov 2013.
NCT 2016a {published data only}
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Ochmann 2015 {published data only}
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Olazaran 2004 {published data only}
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Optale 2010 {published data only}
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Oswald 1996 {published data only}
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Park 2009 {published data only}
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Pietila 2017 {published data only}
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Poon 2005 {published data only}
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Quintana‐Hernandez 2015 {published data only}
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Quintana‐Hernandez 2016 {published data only}
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SeungHyun 2017 {published data only}
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Umin 2015 {published data only}
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van Zon 2016 {published data only}
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