Comparison 6.

Drop outs for all included trials

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Drop outs	44		Risk Difference (M‐H, Random, 95% CI)	Subtotals only
1.1 by end of treatment phase	44	2658	Risk Difference (M‐H, Random, 95% CI)	0.00 [‐0.01, 0.02]
1.2 by end of scheduled follow‐up (cumulative)	11	657	Risk Difference (M‐H, Random, 95% CI)	‐0.02 [‐0.08, 0.04]