Table 2.

Results of meta-analysis for MMP-1-1607 1G/2G polymorphism and bladder cancer risk

Comparison	Test of association			Model	Test of heterogeneity
	OR	95 % CI	P		P	I 2
2G vs. 1G	1.17	0.98–1.39	0.083	R	0	88.2
2G2G vs. 1G1G	1.26	0.95–1.67	0.103	R	0	83.8
1G2G vs. 1G1G	1.02	0.89–1.16	0.799	R	0.035	65.0
2G2G vs. 1G2G/1G1G	1.44	1.05–1.97	0.022	R	0.003	79.0
2G2G/1G2G vs. 1G1G	1.06	0.95–1.20	0.307	R	0.001	82.8

OR odds ratio, CI confidence interval, F fixed effect model, R random effect model