Comparison 4. Non‐platinum versus platinum combination therapy (with Zhang 2006).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 1‐Year survival rate (with Zhang 2006)	14	1791	Risk Ratio (M‐H, Fixed, 95% CI)	0.89 [0.82, 0.96]
2 Objective response rate (with Zhang 2006)	12	1528	Risk Ratio (M‐H, Fixed, 95% CI)	1.60 [1.36, 1.88]