Table 2. Main results of pooled ORs and stratification analysis of the miR-196a2 C/T (rs11614913) and miR-146a G/C (rs2910164) functional polymorphisms on cancer risk in the meta-analysis.

miR-196a2		TT vs CC	CT vs CC	T vs C	Dominant model	Recessive model
C/T	N	OR (95% CI) Ph	OR (95% CI) Ph	OR (95% CI) Ph	OR (95% CI) Ph	OR (95% CI) Ph
Total	11	0.92(0.85–0.99)0.45	0.98(0.93–1.03)0.87	0.96(0.92–0.99)0.61	0.97(0.93–1.02)0.93	0.90(0.84–0.97)0.50
Cancer types
Breast	3	0.84(0.78–1.05)0.08	0.97(0.89–1.06)0.82	0.94(0.88–0.99)0.26	0.96(0.89–1.03)0.73	0.83(0.77–1.03)0.07
Lung	2	0.88(0.75–1.04)0.74	0.94(0.83–1.07)0.99	0.94(0.86–1.02)0.71	0.95(0.86–1.05)0.91	0.91(0.78–1.05)0.57
Liver	2	0.93(0.72–1.19)0.29	0.98(0.80–1.19)0.71	0.96(0.84–1.09)0.24	0.97(0.82–1.15)0.60	0.92(0.72–1.16)0.15
Others	4	1.01(0.87–1.18)0.69	1.02(0.92–1.04)0.29	0.99(0.92–1.07)0.53	1.00(0.93–1.02)0.48	0.95(0.83–1.10)0.87
Ethnicity
Caucasian	4	0.94(0.82–1.07)0.10	0.99(0.91–1.07)0.51	0.96(0.91–1.02)0.21	0.98(0.91–1.05)0.52	0.92(0.81–1.04)0.09
Asian	7	0.91(0.82–1.00)0.75	0.97(0.89–1.05)0.84	0.95(0.90–0.99)0.74	0.97(0.91–1.03)0.91	0.90(0.82–0.98)0.85

N indicates number of studies involved; Ph: P-value of Q-test for heterogeneity test.