Comparison 2. Subgroup analysis: PRP releasate/lysate versus standard care (with/without placebo).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Chronic wounds completely healed	7	376	Risk Ratio (M‐H, Random, 95% CI)	1.21 [0.94, 1.56]
1.1 PRP releasate	3	204	Risk Ratio (M‐H, Random, 95% CI)	1.23 [1.01, 1.49]
1.2 PRP lysate	4	172	Risk Ratio (M‐H, Random, 95% CI)	1.45 [0.67, 3.13]