Comparison 1. Objective one: more time spent in rehabilitation vs less time spent in rehabilitation – immediate outcomes.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1.1 Activities of daily living outcomes	19	864	Std. Mean Difference (IV, Random, 95% CI)	0.13 [‐0.02, 0.28]
1.2 Activity measures of the upper limb	18	426	Std. Mean Difference (IV, Random, 95% CI)	0.09 [‐0.11, 0.29]
1.3 Activity measures of the lower limb	5	425	Std. Mean Difference (IV, Random, 95% CI)	0.25 [‐0.03, 0.53]
1.4 Motor impairment measures of the upper limb	12	287	Std. Mean Difference (IV, Random, 95% CI)	0.32 [0.06, 0.58]
1.5 Motor impairment measures of the lower limb	1	51	Std. Mean Difference (IV, Random, 95% CI)	0.71 [0.15, 1.28]
1.6 Serious adverse events/death	2	379	Risk Ratio (M‐H, Random, 95% CI)	1.20 [0.51, 2.85]