ABO genotypes and the risk of esophageal and gastric cancers

BMC Cancer

Table 2 Distribution of ABO blood types in control subjects by study

Study	Blood Type				P
Study	O	A	B	AB	P
Overall	889 (33.0%)	725 (26.9%)	853 (31.6%)	229 (8.49%)	0.004
Linxian Nutrition Intervention Trial^a	133 (29.7%)	106 (23.7%)	160 (35.7%)	49 (10.9%)
Shanxi Case-Control Study^b	555 (33.5%)	430 (26.0%)	535 (32.3%)	135 (8.16%)
Singapore Chinese Health Study^c	57 (41.9%)	38 (27.9%)	35 (25.7%)	6 (4.41%)
Shanghai Men’s Health Study^d	73 (34.3%)	67 (31.5%)	56 (26.3%)	17 (7.98%)
Shanghai Women’s Health Study^e	71 (29.1%)	84 (34.4%)	67 (27.5%)	22 (9.02%)

^aThe Linxian General Population Nutrition Intervention Trial was a large-scale, randomized, double-blind, primary prevention trial in Linxian, China
^bThe Shanxi Case-Control study was a neighborhood matched case-control study conducted in Shanxi, China
^cThe Singapore Chinese Health Study was large-scale cohort study of diet and health in Chinese men and women aged 45–74 years in Singapore
^dThe Shanghai Men’s Health Study was a population-based cohort study of men aged 40–74 years, living in urban Shanghai, China
^eThe Shanghai Women’s Health Study was a population-based cohort study of men aged 40–74 years, living in urban Shanghai, China

ISSN: 1471-2407