Table 3. The genotypes and allele frequencies of DNMT3A rs1550117 A>G in NSCLC patients.

Variables		Genotype			p value1	Allele		p value2
		GG	GA	AA		G	A
Total		441	145	14		1027	173
Age	≤ 60	246	76	8	0.768	568	92	0.603
	> 60	195	69	6		459	81
Gender	Male	312	107	9	0.656	731	125	0.607
	Female	129	38	5		296	48
Smoking status	Ever	130	33	4	0.347	293	41	0.224
	Never	313	110	10		736	130
Alcohol status	Ever	144	42	6	0.482	330	54	0.811
	Never	297	103	8		697	119

¹ Two-sided χ² test for genotype distribution.

² Two-sided χ² test for allele distribution.