Fig. 2: Results of the RoB2 assessment for 22 randomized parallel-group trials (ordered by DiGA category, then chronologically).

The figure presents the RoB2 judgments for five bias domains and the overall risk of bias for each of the 22 included randomized parallel-group DiGA approval studies. Risk levels are color-coded as follows: green (low risk), yellow (some concerns), red (high risk). Figure 2 shows the studies ordered by DiGA category from the DiGA directory, as in Tables 1 and 2, then according to the chronological appearance of the study.