Genetic Polymorphisms in the RAD51 Gene with a Risk of Head and Neck Cancer and Esophageal Cancer: A Meta-Analysis

Table 4

Results of overall and subgroup analyses for rs1801321.

	No	T versus G			TT versus GG			TG versus GG			TT+TG versus GG			TT versus TG+GG
		OR	95% CI		OR	(95% CI)		OR	(95% CI)		OR	(95% CI)		OR	(95% CI)
Overall	4	1.11	0.66-1.87	0.686	1.12	0.37-3.40	0.846	1.17	0.78-1.76	0.451	1.16	0.67-2.03	0.592	1.05	0.40-2.76	0.926
PCR-RFLP	2	1.46	0.48-4.48	0.504	3.02	0.12-76.6	0.502	1.42	0.64-3.17	0.394	1.52	0.50-4.65	0.463	2.56	0.15-44.5	0.518
Caucasian	2	0.82	0.72-0.95	0.007	0.44	0.14-1.43	0.173	0.96	0.78-1.19	0.723	0.86	0.71-1.06	0.161	0.45	0.14-1.46	0.182
Small sample	3	1.24	0.57-2.66	0.590	1.43	0.17-12.2	0.743	1.27	0.71-2.30	0.424	1.30	0.59-2.86	0.520	1.31	0.19-8.87	0.782