Table 2.
ABO and FUT2 allele frequencies of blood donor controls compared with pancreatic cancer cases
| Allele | Controls (n = 758) | All cases (n = 474) | PDAC cases only (n = 390) | ||||
|---|---|---|---|---|---|---|---|
| % | % | P | OR (95% CI) | % | P | OR (95% CI) | |
| ABO | |||||||
| A1 | 17.9 | 22.4 | 0.057 | 1.32 (0.99–1.75) | 23.8 | 0.018 | 1.43 (1.06–1.93) |
| A2 | 7.8 | 7.6 | 1.000 | 0.97 (0.63–1.50) | 7.7 | 1.000 | 0.99 (0.63–1.56) |
| B | 8.7 | 7.6 | 0.491 | 0.86 (0.56–1.32) | 7.7 | 0.556 | 0.87 (0.56–1.37) |
| O | 65.6 | 62.4 | 0.266 | 0.87 (0.69–1.11) | 60.8 | 0.109 | 0.81 (0.63–1.05) |
| FUT2 | |||||||
| Se | 51.5 | 51.5 | 1.000 | 1.00 (0.79–1.26) | 52.1 | 0.847 | 1.02 (0.80–1.31) |
| Se0 | 48.5 | 48.5 | 1.000 | 1.00 (0.79–1.26) | 47.9 | 0.847 | 0.98 (0.77–1.25) |
n, number of genotyped alleles; PDAC, pancreatic ductal adenocarcinoma; P, P ‐value from chi‐square test (df = 1); OR (95% CI), odds ratio (95% confidence interval). Significant P‐value is shown in bold face.