Table. Summary of Outcomes for the Main Analysis Comparing PCI vs CABG and for the Subgroup Analyses^a.

Outcomes	No. of studies	No. of patients	Fixed-effect model				Random-effects model				Heterogeneity
			IRR (95% CI)	P value	P value for interaction	IRR (95% CI)		P value	P value for interaction	I2, %		P value
All-cause mortality	22	13 490	1.17 (1.05-1.29)	.003	NA	1.13 (0.97-1.31)		.12	NA	31.2		.08
PCI with drug-eluting stents	9	8857	1.22 (1.09-1.38)	<.001	.19	1.22 (1.06-1.41)		.006	.51	15.8		.30
PCI with bare-metal stents	11	4018	1.04 (0.84-1.29)	.70	.19	1.08 (0.78-1.50)		.63	.51	40.6		.08
Left main disease	5	3995	1.11 (0.91-1.35)	.32	.56	0.99 (0.73-1.36)		.97	.37	41.5		.15
Other vessel disease	17	9495	1.19 (1.06-1.33)	.004	.56	1.17 (0.98-1.40)		.09	.37	31.4		.11
Cardiac mortality	17	12 471	1.24 (1.05-1.45)	.009	NA	1.16 (0.91-1.48)		.24	NA	43.8		.03
PCI with drug-eluting stents	8	8597	1.31 (1.09-1.58)	.004	.21	1.24 (0.89-1.73)		.21	.46	62.1		.01
PCI with bare-metal stents	9	3874	1.04 (0.76-1.43)	.79	.21	1.04 (0.74-1.45)		.84	.46	5.9		.39
Left main disease	3	3689	0.96 (0.70-1.30)	.78	.06	0.93 (0.64-1.35)		.71	.20	27.4		.25
Other vessel disease	14	8782	1.36 (1.13-1.64)	.001	.06	1.27 (0.95-1.70)		.11	.20	41.1		.06
Noncardiac mortality	16	12 341	1.19 (1.00-1.41)	.046	NA	1.19 (1.00-1.42)		.05	NA	3.0		.42
PCI with drug-eluting stents	7	8467	1.28 (1.04-1.57)	.02	.22	1.30 (1.00-1.69)		.05	.23	27.1		.22
PCI with bare-metal stents	9	3874	1.02 (0.75-1.38)	.91	.22	1.02 (0.75-1.38)		.91	.23	0.0		.68
Left main disease	3	3689	1.41 (1.05-1.89)	.02	.15	1.41 (1.05-1.89)		.02	.17	0.0		.64
Other vessel disease	13	8652	1.09 (0.88-1.34)	.43	.15	1.10 (0.88-1.36)		.42	.17	4.2		.40

Abbreviations: CABG, coronary artery bypass grafting; IRR, incidence rate ratio; NA, not applicable; PCI, percutaneous coronary intervention.

^a In all subgroup analyses, the reference is CABG. Differences were calculated using P for interaction.