Table 2.
Adjusted Odds Ratios of prostate cancer by age groups (> 55, <= 55 years old)
| Age group/ Genotypes | Cases N (% within age strata) | Controls N (% within age strata) | OR (95% CI)1 | OR (95% CI)2 | P for testing multiplicative interaction |
| Age = 55 | |||||
| 9A/9A | 46 (78.0) | 322 (87.7) | 1.00 | 1.00 | |
| 9A/6A or 6A/6A | 13 (22.0) | 45 (12.3) | 2.13 (1.06–4.27) | 2.11 (0.98–4.57) | |
| Age > 55 | 0.01 | ||||
| 9A/9A | 334 (87.2) | 80 (81.6) | 1.00 | 1.00 | |
| 9A/6A or 6A/6A | 49 (12.8) | 18 (18.4) | 0.64 (0.36–1.17) | 0.57 (0.30–1.10) |
1 OR was adjusted for race.
2 OR was adjusted for race and age strata within age groups