Table 3 Distribution of imputed ABO blood typesa and the risk of upper gastrointestinal cancer
From: ABO genotypes and the risk of esophageal and gastric cancers
Group | Total | Blood Type | |||
|---|---|---|---|---|---|
N | O | A | B | AB | |
Number of controls (%) | 2696 | 889 (33.0%) | 725 (26.9%) | 853 (31.6%) | 229 (8.5%) |
Number of ESCC cases (%) | 2022 | 581 (28.8%) | 527 (26.1%) | 701 (34.8%) | 208 (10.3%) |
Crudeb OR (95% CI) |  | REF | 1.18 (1.00–1.38) | 1.21 (1.04–1.41) | 1.35 (1.08–1.69) |
Adjustedc OR (95% CI) |  | REF | 1.17 (1.00–1.38) | 1.19 (1.02–1.38) | 1.34 (1.07–1.67) |
Number of Cardia cases (%) | 1189 | 362 (30.7%) | 321 (27.2%) | 383 (32.4%) | 115 (9.7%) |
Crudeb OR (95% CI) |  | REF | 1.12 (0.94–1.35) | 1.06 (0.89–1.26) | 1.19 (0.92–1.55) |
Adjustedc OR (95% CI) |  | REF | 1.13 (0.94–1.36) | 1.07 (0.89–1.27) | 1.17 (0.90–1.53) |
Number of Noncardia cases (%) | 1161 | 339 (29.3%) | 375 (32.4%) | 330 (28.5%) | 113 (9.8%) |
Crudeb OR (95% CI) |  | REF | 1.38 (1.15–1.66) | 1.13 (0.94–1.36) | 1.47 (1.12–1.91) |
Adjustedc OR (95% CI) |  | REF | 1.37 (1.14–1.65) | 1.12 (0.93–1.35) | 1.44 (1.10–1.89) |