Table 2.

Stratification analysis of XPG rs873601G>A and risk genotypes with stomach cancer susceptibility

Variables	rs873601 (cases/controls)		Adjusted ORa (95% CI)	P a	Risk genotypes (cases/controls)		Adjusted ORa (95% CI)	P a
	GG/GA	AA			0	1–2
Median age, year
≤59	249/275	84/85	1.05 (0.72–1.53)	0.812	64/92	269/268	1.44 (0.97–2.14)	0.070
>59	256/326	103/85	1.54 (1.05–2.25)	0.028	81/108	278/303	1.13 (0.77–1.65)	0.538
Gender
Females	146/170	54/55	1.06 (0.65–1.75)	0.810	45/55	155/170	1.04 (0.62–1.74)	0.891
Males	359/431	133/115	1.37 (1.00–1.89)	0.052	100/145	392/401	1.40 (1.01–1.93)	0.043
Smoking status
Never	310/275	117/86	1.14 (0.80–1.64)	0.463	98/82	329/279	0.94 (0.65–1.36)	0.737
Ever	195/326	70/84	1.43 (0.95–2.15)	0.085	47/118	218/292	1.83 (1.20–2.80)	0.005
Pack‐year
0	310/275	117/86	1.14 (0.80–1.64)	0.463	98/82	329/279	0.94 (0.65–1.36)	0.737
≤27	100/201	33/49	1.29 (0.73–2.29)	0.385	24/75	109/175	1.83 (1.02–3.33)	0.045
>27	95/125	37/35	1.52 (0.82–2.84)	0.185	23/43	109/117	1.87 (0.97–3.61)	0.062
Drinking status
Never	394/420	145/119	1.26 (0.92–1.73)	0.144	108/140	431/399	1.41 (1.02–1.94)	0.036
Ever	111/181	42/51	1.27 (0.75–2.13)	0.377	37/60	116/172	0.97 (0.57–1.64)	0.896
BMI
<18.5	38/4	15/1	1.76 (0.17–18.58)	0.640	13/1	40/4	0.87 (0.08–9.37)	0.907
18.5–24.0	301/195	122/49	1.62 (1.11–2.38)	0.013	87/61	336/183	1.30 (0.89–1.90)	0.170
>24.0	166/402	50/120	1.00 (0.68–1.47)	0.993	45/138	171/384	1.33 (0.90–1.97)	0.148
Tumour sites
Cardia	148/601	51/170	1.17 (0.79–1.74)	0.433	43/200	156/571	1.16 (0.78–1.73)	0.472
Non‐cardia	357/601	136/170	1.36 (1.01–1.82)	0.041	102/200	391/571	1.33 (0.98–1.81)	0.064

^aAdjusted for age, gender, BMI, smoking and drinking status.

OR: odds ratio; CI: confidence interval; BMI: body mass index.

The results were in bold, if the 95% CI excluded 1 or P<0.05.