Symptom Reduction and Engagement in a Cognitive-Behavioral Mobile Phone App: A Study of User Profiling to Determine Prognostic Indicators

Objective: We investigated the presence of latent transition profiles in a sample of users of a cognitive -behavioral mental health app for the general population. Users' baseline characteristics were used as predictors of the profiles. The role of engagement with the app in the transition profiles was examined. Method: A total of 541 users completed the Patient Health Questionnaire -9 and the General Anxiety Disorder -7 when started using the app and 30 days after. Random -Intercept Latent Transition Analysis was implemented to identify users' profiles and transition patterns as classes. The age of the users and the Emotional Self -Awareness Scale -Revised (ESAS-R) were used as predictors of class membership at baseline. The Homework Rating Scale -Mobile Application (HRSMA; as a measure of engagement) was used as a predictor of class membership at 30 days of app use. Results: A 3 class solution was obtained according to the severity of symptoms (from mild to moderately severe). Age and ESAS-R predicted class membership initially; the higher the age and ESAS-R, the higher the probability of starting using the app with lower distress levels. The HRS-MA predicted class membership at 30 days of app use; the higher the engagement for more symptomatic and younger users, the higher the probability of improvement. However, older users tended to engage less. Conclusion: Our findings underpin the relevance of easily accessible digital interventions for young adults with mild to moderate mental health problems. Further studies and developments are required to enhance these apps for older cohorts.