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Randomized Controlled Trial
. 2017 Aug 22;16(1):13.
doi: 10.1186/s12952-017-0078-z.

Work-focused cognitive behavioral intervention for psychological complaints in patients on sick leave due to work-related stress: Results from a randomized controlled trial

Vita Ligaya Dalgaard  1 , Lars Peter Sønderbo Andersen  2 , Johan Hviid Andersen  2 , Morten Vejs Willert  3 , Ole Carstensen  2 , David John Glasscock  2
Affiliations
Randomized Controlled Trial

Work-focused cognitive behavioral intervention for psychological complaints in patients on sick leave due to work-related stress: Results from a randomized controlled trial

Vita Ligaya Dalgaard et al. J Negat Results Biomed. .

Abstract

Background: Work-related stress is a global problem with negative implications for individuals and society. The purpose of the current study was to evaluate a stress management intervention for patients on sick leave due to work-related stress complaints using a three-armed randomized controlled design.

Methods: Participants were patients referred from three municipalities to the regional Department of Occupational Medicine. Inclusion criteria were: 1) sick leave due to work-related stress complaints, 2) a diagnosis of adjustment disorder or reactions to severe stress (ICD 10 code: F43,2 - F 43,9 not PTSD) or mild depressive episode (F 32.0). Through a double randomization procedure patients (n = 163) were randomized to either an intervention group (n = 58), a 'control group A' receiving a clinical examination (n = 56), or 'control group B' (n = 49) receiving no offers at the department. The intervention comprised six sessions of individual cognitive behavioral therapy and the offer of a small workplace intervention. Questionnaire data were analyzed with multivariate repeated measurements analysis. Primary outcomes assessed were perceived stress and general mental health. Secondary outcomes were sleep quality and cognitive failures. Follow-up was at four and 10 months after baseline.

Results: Complaints were significantly reduced in all groups over time. No group effects were observed between the intervention group and control group A that was clinically assessed. Significant group effects were found for perceived stress and memory when comparing the intervention group to group B, but most likely not due to an intervention effect.

Conclusion: Psychological complaints improved substantially over time in all groups, but there was no significant treatment effect on any outcomes when the intervention group was compared to control group A that received a clinical assessment.

Trial registration: ISRCTN ISRCTN91404229. Registered 03 August 2012 (retrospectively registered).

Keywords: Absenteeism; Cognitive behavioral therapy; Cognitive difficulties; Mental health; Perceived stress; Randomized controlled trial; Sleep.

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Conflict of interest statement

Ethics approval and consent to participate

This study was approved by the Danish Data Protection Agency. The study has been classified as a survey and therefore did not require approval from the Health Research Ethics Committee. Consent to participate was obtained.

Consent for publication

Not applicable.

Competing interests

None declared.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Figures

Fig. 1
Fig. 1
Flowchart of patient recruitment, allocation and outcome assessment. Trial period: 1st June 2009– 31st of Februrary 2014. Numbers at follow-up refer to those who responded to follow-up questionnaires and were analyzed
See this image and copyright information in PMC

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