Comparison 6. (Comparison 3) Effects of FFS mixed with existing payment methods compared to single payment method: dichotomous quantity of health services provided.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
6.1 Quantity of health services provided (services coverage status)	2	192	Risk Ratio (IV, Random, 95% CI)	1.37 [1.07, 1.76]