Table 1 –
Group | N | Risk allele frequency (%) | Carrier frequency (%) | Homozygote genotype frequency (%) | Heterozygote genotype | Homozygote variant genotype | ||||
---|---|---|---|---|---|---|---|---|---|---|
Frequency (%) | OR (95% CI) | p value | Frequency (%) | OR (95% CI) | p value | |||||
Controls (reference group) | 8595 | 6.0 | 11.6 | 88.3 | 11.3 | 0.35 | ||||
Cases | 9052 | 12.6 | 23.7 | 76.3 | 22.3 | 2.29 (2.10–2.49) | 6.7E-81 | 1.4 | 5.04 (3.36–7.55) | 5.2E-15 |
Cases with at least 1 first-degree relative with prostate cancer | 1795 | 14.8 | 27.4 | 72.6 | 25.1 | 2.67 (2.34–3.04) | 1.6E-48 | 2.3 | 8.66 (5.22–14.37) | 6.8E-17 |
Cases with no family history of prostate cancer | 6125 | 11.9 | 22.7 | 77.4 | 21.5 | 2.17 (1.97–2.38) | 1.1E-59 | 1.2 | 4.31 (2.77–6.71) | 8.8E-11 |
Cases with age at diagnosis <60 yr | 2923 | 15.1 | 28.2 | 71.8 | 26.2 | 2.63 (2.32–2.97) | 5.9E-52 | 2.0 | 6.84 (4.09–11.44) | 2.4E-13 |
Cases with age at diagnosis ≥60 yr | 6129 | 11.4 | 21.6 | 78.4 | 20.4 | 2.10 (1.90–2.31) | 2.6E-49 | 1.2 | 4.22 (2.69–6.63) | 4.2E-10 |
Cases with at least 1 first-degree relative with prostate cancer and case age at diagnosis <60 yr | 688 | 16.9 | 30.8 | 69.2 | 27.9 | 2.85 (2.33–3.49) | 1.4E-24 | 2.9 | 11.56 (6.00–22.27) | 2.5E-13 |
Familial cases | 143 | 17.8 | 32.2 | 67.8 | 28.7 | 3.33 (2.29–4.85) | 3.3E-10 | 3.5 | 13.92 (5.15–37.63) | 2.1E-07 |
Familial cases with ≥2 first-degree relatives with prostate cancer | 76 | 19.1 | 32.9 | 67.1 | 27.6 | 3.23 (1.92–5.41) | 8.8E-06 | 5.3 | 21.20 (7.04–63.83) | 5.6E-08 |
Familial cases with ≥2 first-degree relatives with prostate cancer and age at diagnosis <60 yr (any relative) | 51 | 23.5 | 39.2 | 60.8 | 31.4 | 3.92 (2.13–7.22) | 1.2E-05 | 7.8 | 33.41 (10.86–102.84) | 9.5E-10 |
CI =confidence interval; OR = odds ratio.
Controls are limited to 8594 for comparisons with the 143 familial cases, as one control is a full sibling of one of the familial cases.
Family history in nonfamilial cases and controls includes first- or second-degree relatives with prostate cancer.