19. Overall survival for chemotherapy trials.

Model	ESA versus control HR (95% CI)	P value*	I²	P value**
Two‐stage log‐rank fixed‐effect model	1.04 (95% CI 0.97‐1.11)	0.2634	5.3%	0.3775
Two‐stage log‐rank random‐effect model	1.04 (95% CI 0.97‐1.12)	0.2774	5.3%	0.3775
Two‐stage Cox fixed‐effect model	1.04 (95% CI 0.97‐1.11)	0.3081	0%	0.6828
Two‐stage Cox random‐effects model	1.04 (95% CI 0.97‐1.11)	0.3081	0%	0.6828
Cox model stratified by study	1.04 (95% CI 0.97‐1.11)	0.263	‐	0.2359

*LR test, ** for test of heterogeneity