Table 2. Summary of meta-analysis of association of PAI-1 4G/5G gene polymorphism and coronary artery disease risk.

	Number	CAD size	Con size	Pooled OR (95% CI)	P value	Pheterogeneity
Chinese Han population	8	879	628	1.70(1.18–2.44)	0.004*	<0.0001*
Subgroup 1(total size>200)	4	665	451	1.56(0.95–2.57)	0.08	0.04*
Subgroup 2(total size<200)	4	214	177	1.93(1.09–3.35)	0.02*	<0.0001*

Abbreviations: CI: confidence interval; OR: odds ratio; number: literature number; CAD size: the total number of CAD cases; Con size: control group size, the total number of control group;

*P<0.05.