Table 1. Characteristics of miR-146a rs2910164 gene mutation and the included researches.

Study	Country	N	Lung cancer							Healthy population
			GC (%)	SE	CC (%)	SE	C (%)	SE		Number	GC (%)	SE	CC (%)	SE	C (%)	SE
Fang (18)	China	492	0.467	0.022	0.118	0.015	0.352	0.015		209	0.526	0.035	0.153	0.025	0.416	0.024
Jeon (15)	Korean	1,101	0.454	0.015	0.334	0.014	0.561	0.011		1,096	0.493	0.015	0.285	0.014	0.531	0.011
Jia (19)	China	400	0.455	0.025	0.385	0.024	0.613	0.017		400	0.500	0.025	0.310	0.023	0.560	0.018
Mohamed (20)	Egypt	120	0.500	0.046	0.133	0.031	0.383	0.031		120	0.392	0.045	0.050	0.020	0.246	0.028
Sodhi (21)	India	250	0.336	0.030	0.020	0.009	0.188	0.017		255	0.243	0.027	0.008	0.006	0.129	0.015
Tian (22)	China	1,058	0.482	0.015	0.178	0.012	0.419	0.011		1,035	0.485	0.016	0.163	0.011	0.406	0.011
Vinci (23)	Italy	101	0.475	0.050	0.089	0.028	0.327	0.033		129	0.349	0.042	0.085	0.025	0.260	0.027
Wei (24)	China	198	0.500	0.036	0.343	0.034	0.593	0.025		218	0.390	0.033	0.138	0.023	0.333	0.023
Yin (25)	China	575	0.487	0.021	0.344	0.020	0.588	0.015		608	0.515	0.020	0.276	0.018	0.534	0.014
Yin (26)	China	258	0.519	0.031	0.306	0.029	0.566	0.022		310	0.516	0.028	0.281	0.026	0.539	0.020