Table 2. Baseline characteristics of SELECT participants included in the retention analysis, by race.
| White (n=28,118) | Black (n=4,322) | |||
|---|---|---|---|---|
| N | % | N | % | |
| DEMOGRAPHIC | ||||
| Age group (years) a | ||||
| 50-54 | 1374 | 32% | ||
| 55-59 | 9271 | 33% | 1240 | 29% |
| 60-64 | 7776 | 28% | 803 | 19% |
| ≥65 | 11071 | 39% | 905 | 21% |
| Ethnicity | ||||
| Hispanic | 567 | 2% | 40 | 1% |
| Not Hispanic | 27326 | 97% | 4244 | 98% |
| Missing | 225 | 1% | 38 | 1% |
| Family history of prostate cancer | ||||
| Yes | 5333 | 19% | 720 | 17% |
| No | 22755 | 81% | 3567 | 83% |
| Missing | 30 | 0% | 35 | 1% |
| Living arrangements | ||||
| Alone | 3265 | 12% | 923 | 21% |
| With others | 24703 | 88% | 3313 | 77% |
| Missing | 150 | 1% | 86 | 2% |
| Education level | ||||
| Up to high school graduate | 5370 | 19% | 1245 | 29% |
| Vocational/some college | 7304 | 26% | 1556 | 36% |
| College graduate/some graduate school | 8111 | 29% | 846 | 20% |
| Completed graduate school | 7125 | 25% | 586 | 14% |
| Missing | 208 | 1% | 89 | 2% |
| BASELINE COMORBIDITY | ||||
| Smoking status | ||||
| Current | 1671 | 6% | 798 | 18% |
| Former | 14291 | 51% | 1761 | 41% |
| Never | 12072 | 43% | 1699 | 39% |
| Missing | 84 | 0% | 64 | 1% |
| Cardiovascular health historyb | ||||
| Yes | 4560 | 16% | 570 | 13% |
| No | 23549 | 84% | 3749 | 87% |
| Missing | 9 | 0% | 3 | 0% |
| Diabetes | ||||
| Yes | 2341 | 8% | 741 | 17% |
| No | 25768 | 92% | 3578 | 83% |
| Missing | 9 | 0% | 3 | 0% |
| Hypertension | ||||
| Yes | 10045 | 36% | 2318 | 54% |
| No | 18064 | 64% | 2001 | 46% |
| Missing | 9 | 0% | 3 | 0% |
| REASONS FOR PARTICIPATING ON SELECTc | ||||
| “May help others in the future” | ||||
| Yes | 25393 | 90% | 3478 | 80% |
| No | 2693 | 10% | 808 | 19% |
| Missing | 32 | 0% | 36 | 1% |
| “It may help me be healthier” | ||||
| Yes | 20651 | 73% | 3251 | 75% |
| No | 7435 | 26% | 1035 | 24% |
| Missing | 32 | 0% | 36 | 1% |
| “It may prevent prostate cancer” | ||||
| Yes | 22433 | 80% | 3477 | 80% |
| No | 5653 | 20% | 809 | 19% |
| Missing | 32 | 0% | 36 | 1% |
| “My wife or others in my family want me to join” | ||||
| Yes | 4192 | 15% | 614 | 14% |
| No | 23894 | 85% | 3672 | 85% |
| Missing | 32 | 0% | 36 | 1% |
| “It makes me proud to be part of a study” | ||||
| Yes | 10453 | 37% | 1565 | 36% |
| No | 17633 | 63% | 2721 | 63% |
| Missing | 32 | 0% | 36 | 1% |
| “It gives me a chance to see someone about my health” | ||||
| Yes | 7865 | 28% | 1609 | 37% |
| No | 20221 | 72% | 2677 | 62% |
| Missing | 32 | 0% | 36 | 1% |
a
White participants were eligible for SELECT at age 55 and older; Black participants were eligible at age 50 and older.
b
A patient has a positive cardiovascular health history if he reported any of the following at baseline: Embolism, thrombosis; TIA; Stroke; CHF; Arrhythmia; Angina; MI; CABG; Angioplasty.
c
All participants completed a form with the question, “Why have you chosen to be on this study?” Participants may have marked more than one response.