Characteristics of the prostate cancer cases and matched controls from the CPS-II Nutrition Cohort
| Controls (N = 272) | Cases (N = 272) | |
|---|---|---|
| Variable | N (%) | N (%) |
| Age at blood draw | ||
| ≤65 | 51 (18.7) | 50 (18.3) |
| 66–70 | 90 (33.1) | 90 (33.1) |
| 71–75 | 77 (28.3) | 81 (29.8) |
| 76+ | 54 (19.9) | 51 (18.8) |
| Race | ||
| White | 271 (99.6) | 271 (99.6) |
| Black | 1 (0.4) | 1 (0.4) |
| Family history of prostate cancera | ||
| Yes | 31 (11.4) | 50 (18.4) |
| Diabetesb | ||
| Yes | 33 (12.1) | 27 (9.9) |
| BMI (kg/m2)b | ||
| <25 | 112 (41.2) | 101 (37.1) |
| 25–<30 | 108 (39.7) | 128 (47.1) |
| 30+ | 47 (17.3) | 41 (15.1) |
| Missing | 5 (1.8) | 2 (0.7) |
| Physical activity (METs/wk)a | ||
| <7 | 76 (27.9) | 75 (27.6) |
| 7–<17.5 | 108 (39.7) | 112 (41.2) |
| 17.5–<24.5 | 38 (14.0) | 48 (17.7) |
| 24.5+ | 48 (17.7) | 34 (12.5) |
| Missing | 2 (0.7) | 3 (1.1) |
| History of PSA testinga | ||
| Never | 24 (8.8) | 40 (14.7) |
| Within 2 years | 192 (70.6) | 180 (66.2) |
| >2 years | 30 (11.0) | 28 (10.3) |
| Unknown | 26 (9.6) | 24 (8.8) |
| Gleason score | ||
| 6 or 7 (3+4) | 27 (9.9) | |
| 7 (4+3) | 108 (39.7) | |
| 8 | 73 (26.8) | |
| 9–10 | 46 (16.9) | |
| Unknown | 18 (6.6) | |
| Stagec | ||
| T2 (organ confined) | 194 (71.3) | |
| T3 | 44 (16.2) | |
| T4 | 25 (9.2) | |
| Unknown | 9 (3.3) | |