Remote Evaluation and Alerting for Collaborative Health (REACH) in Depression

Researchers hope to see if the data smartphones collect continuously can be used to predict if patient's depression symptoms will return. They will do this by collecting data from patient's smartphones and comparing it to their depression symptoms. If this method is successful, researchers could develop a smartphone application to help healthcare providers better monitor patient's depression and intervene earlier if symptoms return.

Inclusion Criteria: * Adult patients (18 years or older) * Treated for depression within Dartmouth Health collaborative care model (CoCM) sites who are discharged from CoCM without depression (PHQ-9 \< 10) * Have access to and ability to use a smartphone (Android version ≥ 6 or iOS version ≥ 11). Exclusion Criteria: * Identified as high risk due to active suicidality, psychosis, or bipolar disorder - Discharged from CoCM with ongoing depressive symptoms (PhQ-9 \> 10