Etiologic factors of gastric cardiac adenocarcinoma among men in Taiwan

Table 1 Demographic characteristics in GCA patients compared with matched hospital-based controls in a Taiwan case-control study, 2000-2009

Variables	Case	Control	OR2	95% CI
Age
≥ 60 yr	28	132	1.03	0.57-1.96
< 60 yr	13	73	1.00
Marital status
Married	35	159	1.63	0.45-5.87
Other	6	46	1.00
Ethnicity
Others1	10	45	1.12	0.73-1.69
Chinese Taiwanese	31	160	1.00
Years of schooling
≤ 9 yr	27	115	2.96	0.65-13.69
> 9 yr	14	90	1.00
Occupation
Farmer	16	59	2.14	0.89-5.12
Business	6	22	1.92	0.73-5.06
Industry	9	52	1.36	0.41-4.38
White-collar	10	72	1.00
Blood type
Non- A type	32	150	1.03	0.50-2.11
A type	9	55	1.00
Blood type
Non-O type	19	114	0.83	0.32-1.96
O type	22	91	1.00
Economics
Poor	21	69	2.11	0.81-5.69
Not-poor	20	136	1.00

¹Others: Including Native, Chinese, and Hakka. GCA: Gastric cardiac adenocarcinoma;

²OR: Odds ratio.