Comparison 4. Subgroup analysis according to the ribavirin dose for patients with detectable HCV RNA after four weeks.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Sustained virological response	3	995	Risk Ratio (M‐H, Random, 95% CI)	1.27 [1.07, 1.50]
1.1 Low dose ribavirin	2	660	Risk Ratio (M‐H, Random, 95% CI)	1.33 [0.94, 1.87]
1.2 Weight based ribavirin dose	1	335	Risk Ratio (M‐H, Random, 95% CI)	1.23 [1.03, 1.48]