Table 3. Stratification analysis of the lincRNA-NR_024015 rs8506G>A genotypes by selected variables in non-cardia gastric cancer patients and controls.

	Cases (N = 438)				Controls (N = 727)				Adjusted OR (95% CI)a	P valueb
	GG	(%)	AG+AA	(%)	GG	(%)	AG+AA	(%)	AG+AA vs. GG
Age(years)
≤60	91	(20.8)	65	(14.8)	194	(26.7)	89	(12.2)	1.56 (1.04–2.34)
>60	135	(30.8)	147	(33.6)	224	(30.8)	220	(30.3)	1.11 (0.82–1.49)	0.19
Sex
Male	148	(33.8)	174	(39.7)	242	(33.3)	249	(34.2)	1.14 (0.86–1.51)
Female	78	(17.8)	38	(8.7)	176	(24.2)	60	(8.3)	1.43 (0.88–2.32)	0.44
Smoking Status
Positive	106	(24.2)	83	(19.0)	168	(23.1)	53	(7.3)	2.48 (1.63–3.78)
Negative	120	(27.4)	129	(29.5)	250	(34.4)	256	(35.2)	1.05 (0.77–1.42)	0.001
Drinking
Positive	118	(26.9)	57	(13.0)	186	(25.6)	81	(11.1)	1.11 (0.74–1.67)
Negative	108	(24.7)	155	(35.4)	232	(31.9)	228	(31.4)	1.46 (1.08–1.98)	0.29
Family history
Positive	15	(3.4)	19	(4.3)	22	(4.0)	29	(4.0)	0.96 (0.40–2.30)
Negative	211	(48.2)	193	(44.1)	396	(54.5)	280	(38.5)	1.29 (1.01–1.66)	0.52
H.pylori status
H. pylori positive	162	(37.0)	160	(36.5)	418	(57.5)	309	(42.5)	1.37 (1.05–1.78)
H. pylori negative	64	(14.6)	52	(11.9)	418	(57.5)	309	(42.5)	1.66 (1.12–2.47)	0.42
TNM stage
I	54	(12.3)	50	(11.5)	418	(57.5)	309	(42.5)	1.25 (0.83–1.89)
II	43	(9.8)	47	(10.7)	418	(57.5)	309	(42.5)	1.48 (0.95–2.29)
III	86	(19.6)	83	(19.0)	418	(57.5)	309	(42.5)	1.31 (0.93–1.83)	0.71
IV	43	(9.8)	32	(7.3)	418	(57.5)	309	(42.5)	1.01 (0.62–1.63)

^aORs were adjusted for age, sex, smoking, and drinking status of non-cardia gastric cancer in a logistic regression model.

^b P value of the test for multiplicative interaction between stratum-related variables and lincRNA-NR_024015 (rs8506G>A AG+AA vs.GG genotypes).