TABLE 1.
Comparison of cases by stage at diagnosis and controls for demographic and socioeconomic factors
| Localized cases (n = 314)N (%) | Advanced cases (n = 102)N (%) | Controls (n = 429)N (%) | |
|---|---|---|---|
| Race | |||
| Caucasian | 175 (55.7) | 70 (68.6) | 258 (60.1) |
| African-American | 139 (44.3) | 32 (31.4) | 171 (39.9) |
| Age (years) | |||
| 65–69 | 138 (44.0) | 54 (52.9) | 186 (43.4) |
| 70–74 | 102 (32.5) | 32 (31.4) | 125 (29.1) |
| 75–79 | 74 (23.5) | 16 (15.7) | 118 (27.5) |
| Geographic region | |||
| Eastern counties | 180 (57.3) | 55 (53.9) | 243 (56.6) |
| Middle counties | 81 (25.8) | 26 (25.5) | 92 (21.5) |
| Western counties | 53 (16.9) | 21 (20.6) | 94 (21.9) |
| Marital statusa | |||
| Single/separated/divorced/widowed | 56 (18.6) | 17 (17.0) | 80 (20.6) |
| Married/living as married | 245 (81.4) | 83 (83.0) | 308 (79.4) |
| Missing | 5 | 1 | 5 |
| Family historya | |||
| None | 212 (70.9) | 66 (66.7) | 329 (84.6) |
| First-degree | 63 (21.1) | 23 (23.2) | 43 (11.0) |
| Second-degree | 24 (8.0) | 10 (10.1) | 17 (4.4) |
| Missing | 7 | 2 | 4 |
| Body mass index (quartiles)a | |||
| <24.4 | 77 (25.9) | 13 (13.1) | 90 (23.5) |
| 24.4–27.2 | 83 (28.0) | 31 (31.3) | 101 (26.3) |
| 27.3–29.8 | 69 (23.2) | 27 (27.3) | 96 (25.1) |
| >29.9 | 68 (22.9) | 28 (28.3) | 96 (25.1) |
| Missing | 9 | 2 | 10 |
| No. of prostate-specific antigen tests in past 5 years | |||
| 0 | 43 (13.7) | 18 (17.7) | 98 (22.9) |
| 1–2 | 102 (32.5) | 29 (28.4) | 154 (36.0) |
| 3–4 | 48 (15.3) | 19 (18.6) | 66 (15.4) |
| ≥5 | 121 (38.5) | 36 (35.3) | 110 (25.7) |
| Missing | 1 | 0 | 0 |
| Educational level | |||
| Elementary education | 84 (26.8) | 22 (22.2) | 89 (20.7) |
| Some high school | 44 (14.1) | 11 (11.1) | 69 (16.1) |
| High school graduate | 78 (24.9) | 23 (23.2) | 102 (23.8) |
| Some college or technical school | 37 (11.8) | 17 (17.2) | 77 (18.0) |
| College graduate | 70 (22.4) | 26 (26.3) | 92 (21.5) |
| Missing | 1 | 3 | 0 |
| Composite socioeconomic status (quartiles) | |||
| Low | 105 (33.4) | 30 (29.4) | 118 (27.5) |
| Medium | 94 (29.9) | 18 (17.7) | 115 (26.8) |
| High | 71 (22.6) | 35 (34.3) | 106 (24.7) |
| Very high | 44 (14.0) | 19 (18.6) | 90 (21.0) |
a
Consists of 306 local cases, 101 advanced cases, and 393 controls.