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. 2023 May 17;11(1):18.
doi: 10.1186/s40345-023-00297-5.

Predictors of adherence to electronic self-monitoring in patients with bipolar disorder: a contactless study using Growth Mixture Models

Abigail Ortiz  1   2 , Yunkyung Park  3 , Christina Gonzalez-Torres  4   3 , Martin Alda  5   6 , Daniel M Blumberger  4   3 , Rachael Burnett  3 , M Ishrat Husain  4   3 , Marcos Sanches  3 , Benoit H Mulsant  4   3
Affiliations

Predictors of adherence to electronic self-monitoring in patients with bipolar disorder: a contactless study using Growth Mixture Models

Abigail Ortiz et al. Int J Bipolar Disord. .

Abstract

Background: Several studies have reported on the feasibility of electronic (e-)monitoring using computers or smartphones in patients with mental disorders, including bipolar disorder (BD). While studies on e-monitoring have examined the role of demographic factors, such as age, gender, or socioeconomic status and use of health apps, to our knowledge, no study has examined clinical characteristics that might impact adherence with e-monitoring in patients with BD. We analyzed adherence to e-monitoring in patients with BD who participated in an ongoing e-monitoring study and evaluated whether demographic and clinical factors would predict adherence.

Methods: Eighty-seven participants with BD in different phases of the illness were included. Patterns of adherence for wearable use, daily and weekly self-rating scales over 15 months were analyzed to identify adherence trajectories using growth mixture models (GMM). Multinomial logistic regression models were fitted to compute the effects of predictors on GMM classes.

Results: Overall adherence rates were 79.5% for the wearable; 78.5% for weekly self-ratings; and 74.6% for daily self-ratings. GMM identified three latent class subgroups: participants with (i) perfect; (ii) good; and (iii) poor adherence. On average, 34.4% of participants showed "perfect" adherence; 37.1% showed "good" adherence; and 28.2% showed poor adherence to all three measures. Women, participants with a history of suicide attempt, and those with a history of inpatient admission were more likely to belong to the group with perfect adherence.

Conclusions: Participants with higher illness burden (e.g., history of admission to hospital, history of suicide attempts) have higher adherence rates to e-monitoring. They might see e-monitoring as a tool for better documenting symptom change and better managing their illness, thus motivating their engagement.

Keywords: Adherence; Bipolar disorder; Electronic monitoring.

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Conflict of interest statement

None.

Figures

Fig. 1
Fig. 1
Cross-tabulation for class membership
Fig. 2
Fig. 2
GMM for e-VAS
Fig. 3
Fig. 3
GMM for weekly self-rating scales
Fig. 4
Fig. 4
GMM for wearable
See this image and copyright information in PMC

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