Comparison 2. Functional status.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
2.1 Functional status (change from baseline, short term)	2	183	Std. Mean Difference (IV, Random, 95% CI)	‐0.25 [‐0.54, 0.04]
2.2 Functional status (change from baseline, medium term)	2	314	Std. Mean Difference (IV, Random, 95% CI)	‐0.38 [‐0.74, ‐0.01]
2.3 Functional status (change from baseline, long term)	1	109	Mean Difference (IV, Fixed, 95% CI)	‐3.38 [‐6.67, ‐0.10]