%0 Journal Article
%@ 2368-7959
%I JMIR Publications
%V 7
%N 9
%P e19476
%T A Smartphone App to Monitor Mood Symptoms in Bipolar Disorder: Development and Usability Study
%A Ryan,Kelly Ann
%A Babu,Pallavi
%A Easter,Rebecca
%A Saunders,Erika
%A Lee,Andy Jinseok
%A Klasnja,Predrag
%A Verchinina,Lilia
%A Micol,Valerie
%A Doil,Brent
%A McInnis,Melvin G
%A Kilbourne,Amy M
%+ Department of Psychiatry, University of Michigan, 2101 Commonwealth Blvd, Suite C, Ann Arbor, MI, 49105, United States, 1 734 936 5524, karyan@umich.edu
%K bipolar disorder
%K momentary assessment
%K mood
%K mobile phone
%K mobile app
%D 2020
%7 22.9.2020
%9 Original Paper
%J JMIR Ment Health
%G English
%X Background: There is considerable scientific interest in finding new and innovative ways to capture rapid fluctuations in functioning within individuals with bipolar disorder (BD), a severe, recurrent mental disorder associated with frequent shifts in symptoms and functioning. The use of smartphones can provide valid and real-world tools for use in measurement-based care and could be used to inform more personalized treatment options for this group, which can improve standard of care. Objective: We examined the feasibility and usability of a smartphone to capture daily fluctuations in mood within BD and to relate daily self-rated mood to smartphone use behaviors indicative of psychomotor activity or symptoms of the illness. Methods: Participants were 26 individuals with BD and 12 healthy control individuals who were recruited from the Prechter Longitudinal Study of BD. All were given a smartphone with a custom-built app and prompted twice a day to complete questions of mood for 28 days. The app automatically and unobtrusively collected phone usage data. A poststudy satisfaction survey was also completed. Results: Our sample showed a very high adherence rate to the daily momentary assessments (91% of the 58 prompts completed). Multivariate mixed effect models showed that an increase in rapid thoughts over time was associated with a decrease in outgoing text messages (β=–.02; P=.04), and an increase in impulsivity self-ratings was related to a decrease in total call duration (β=–.29; P=.02). Participants generally reported positive experiences using the smartphone and completing daily prompts. Conclusions: Use of mobile technology shows promise as a way to collect important clinical information that can be used to inform treatment decision making and monitor outcomes in a manner that is not overly burdensome to the patient or providers, highlighting its potential use in measurement-based care. 
%M 32960185
%R 10.2196/19476
%U http://mental.jmir.org/2020/9/e19476/
%U https://doi.org/10.2196/19476
%U http://www.ncbi.nlm.nih.gov/pubmed/32960185