For each study, two of the authors (AAW, ATS) selected psychometrically validated measures of depression and anxiety symptoms. In cases where data from only select subscales of a measure were reported, authors were contacted for anxiety and depression subscale data. Three of the authors (AAW, ATS, DO) extracted numerical data from the studies. Data were extracted to analyze changes from pre to post treatment, pre treatment to follow-up, and intent-to-treat (ITT) with last observation carried forward method.
