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Reduction in PHQ-9 over the course of Engage treatment
| Time | Mean (SD) | df | t value | p value |
|---|---|---|---|---|
| Baseline | 13.78 (342) | |||
| Session 1 | 11.92 (4.38) | 740 | 5.55 | <.0001 |
| Session 2 | 9.41 (4.30) | 742 | 8.26 | <.0001 |
| Session 3 | 7.87 (4.24) | 743 | 5.18 | <.0001 |
| Session 4 | 7.18 (4.23) | 740 | 2.33 | .22 |
| Session 5 | 6.39 (4.64) | 740 | 2.43 | .18 |
| Session 6 | 5.79 (5.08) | 740 | 1.67 | .63 |
t value indicates reduction in depressive symptoms from previous time point, derived from post-hoc comparisons of mixed-effects model; df = degrees of freedom.
