Table 1. Baseline Characteristics of the Study Participants (N = 408).
| Characteristic | No. (%) of participants |
|---|---|
| Age group, y | |
| 50-54 | 140 (34.3) |
| 55-59 | 127 (31.1) |
| 60-64 | 85 (20.8) |
| 65-69 | 56 (13.7) |
| Racial/ethnic group | |
| White | 155 (38.0) |
| Black | 132 (32.4) |
| Asian | 94 (23.0) |
| Other | 18 (4.4) |
| Mixed race | 9 (2.2) |
| Index of multiple deprivation quintile | |
| 1 (Least deprived) | 54 (13.2) |
| 2 | 109 (26.7) |
| 3 | 137 (33.6) |
| 4 | 62 (15.2) |
| 5 (Most deprived) | 44 (10.8) |
| Unknown | 2 (0.5) |
| Charlson comorbidity index | |
| 0 (None) | 324 (79.4) |
| 1 (Mild) | 49 (12.0) |
| ≥2 (Severe) | 13 (3.2) |
| Score unknown | 22 (5.4) |
| First-degree relative with prostate cancer | |
| Yes | 43 (10.5) |
| No | 360 (88.2) |
| Unknown | 5 (1.2) |
| 5α-Reductase inhibitors | |
| Yes | 1 (0.2) |
| No | 407 (99.8) |
| IPSS score | |
| Mild (≤7) | 277 (67.9) |
| Moderate | 112 (27.5) |
| Severe | 10 (2.5) |
| Unknown | 9 (2.2) |
| Previous PSA testa | |
| No | 291 (71.3) |
| Yes | |
| 2-3 y Ago | 30 (7.4) |
| 4-5 y Ago | 41 (10.0) |
| >5 y Ago | 26 (6.4) |
| Date not known | 6 (1.5) |
| Unknown | 14 (3.4) |
| Digital rectal examination findings | |
| Normal | 387 (94.9) |
| Abnormal | 18 (4.4) |
| Unknown | 3 (0.7) |
Abbreviations: IPSS, International Prostate Symptom Score; PSA, prostate-specific antigen.
a
Exclusion criteria included any PSA test in the past 2 years.