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Instrumental variables analyses of primary outcome (PHQ-9) at 3 and 6 months (observed data only)
| PHQ-9 score at 3 months | PHQ-9 score at 6 months | |
|---|---|---|
| Total number of sessions | -0.24 (-0.73 to 0.26), p = 0.34 | -0.18 (-0.82 to 0.45), p = 0.56 |
| Optimum number of sessions(>5) | -2.47 (-7.51 to 2.57), p = 0.33 | -1.88 (-8.34 to 4.58), p = 0.56 |
* All regression analyses were adjusted for baseline scores
