4.2. Analysis.

Comparison 4: Yoga, Outcome 2: Mental health outcomes

Mental health outcomes
Study	Depression	Anxiety	Quality of life	Stress	Negative affect	Other
Bock 2012	Center for Epidemiologic Studies ‐ Depression Scale (CES‐D): assessed at 6 months, data only reported for 8‐week follow‐up. No difference across conditions at 8 weeks, controlling for baseline scores (P = 0.86). Intervention arm scored 10.4 at baseline and 9.3 at 8 weeks post‐baseline (−1.1); comparator arm scored 8.8 at baseline and 8.8 at 8 weeks post‐baseline (0)	State‐Trait Anxiety Inventory (STAIT): assessed at 6 months, data only reported for 8‐week follow‐up. No difference across conditions at 8 weeks, controlling for baseline scores (P = 0.09). Intervention arm scored 43.6 at baseline and 39.4 at 8 weeks post‐baseline (−4.2); comparator arm scored 41.6 at baseline and 41.3 at 8 weeks post‐baseline (−0.3)	Not assessed	Not assessed	Not assessed	General wellbeing ‐ 36‐item Short Form Survey (SF‐36): assessed at 6 months, data only reported for 8‐week follow‐up. No difference across conditions at 8 weeks, controlling for baseline scores (P = 0.60). Intervention arm scored 48.8 at baseline and 52.8 at 8 weeks post‐baseline (+4.0); comparator arm scored 52.1 at baseline and 53.0 at 8 weeks post‐baseline (+0.9)
Gaskins 2015	CES‐D: assessed at 8 weeks, 3 months, and 6 months. No significant differences by group or group by time interactions	STAIT: assessed at 8 weeks, 3 months, and 6 months. No significant differences by group or group by time interactions	Not assessed	Not assessed	Not assessed	Physical self‐worth, attractiveness, physical strength, and condition ‐ Physical Self Perception Profile Scale (PSPP): assessed at 8 weeks, 3 months, and 6 months. No significant differences by group or group by time interactions