Summary of PSM main model and sensitivity analyses, and linear regressions conducted after matching
| PSM method | Linear regression model in PSM sample | |||
|---|---|---|---|---|
| Matching within/across trials | Within/without common support restriction | Exposure | Outcome | Adjusted for |
| Within trials | Within* | Smoking status | Mental health (SF-36)† at 12-month follow-up | Baseline mental health, age, sex |
| Without | Smoking status | Mental health (SF-36)† at 12-month follow-up | Baseline mental health, age, sex | |
| Across trials | Without | Smoking status | Mental health (SF-36)† at 12-month follow-up | Baseline mental health, age, sex, trial ID |
| Within | Smoking status | Mental health (SF-36)† at 12-month follow-up | Baseline mental health, age, sex, trial ID | |
*Main model.
†Emotional well-being subscale.
PSM, propensity score matching; SF-36, 36-item Short Form Survey.