Comparison 3. Secondary outcomes.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
3.1 General Psychological Distress	9	1502	Std. Mean Difference (IV, Random, 95% CI)	0.08 [‐0.05, 0.21]
3.1.1 Depression Specific Measures	6	1014	Std. Mean Difference (IV, Random, 95% CI)	0.12 [‐0.07, 0.31]
3.1.2 Anxiety Specific Measures	4	488	Std. Mean Difference (IV, Random, 95% CI)	0.05 [‐0.13, 0.22]
3.2 Mood Measures	8	683	Std. Mean Difference (IV, Random, 95% CI)	‐0.81 [‐1.44, ‐0.18]