Table 1. Baseline participant characteristics.
| Placebo (n=8,696) |
Vitamin E alone (n=8,737) |
Selenium alone (n=8,752) |
Vitamin E + selenium (n=8,702) |
|||||
|---|---|---|---|---|---|---|---|---|
| AGE | ||||||||
| Median (interquartile range) | 63 | (58-67) | 62 | (58.0-67) | 63 | (58-68) | 62 | (58-67) |
| 50 - 54 years | 355 | 4% | 403 | 5% | 337 | 4% | 385 | 4% |
| 55 - 64 years | 5,078 | 58% | 5,142 | 59% | 5,075 | 58% | 5,051 | 58% |
| 65 - 74 years | 2,702 | 31% | 2,642 | 30% | 2,734 | 31% | 2,731 | 31% |
| 75+ years | 561 | 6% | 550 | 6% | 606 | 7% | 535 | 6% |
| RACE | ||||||||
| White | 6,862 | 79% | 6,893 | 79% | 6,944 | 79% | 6,872 | 79% |
| African American | 1,083 | 12% | 1,106 | 13% | 1,054 | 12% | 1,075 | 12% |
| Hispanic (Non-Afri. American) | 496 | 6% | 476 | 5% | 484 | 6% | 484 | 6% |
| Hispanic (Afri. American) | 76 | 1% | 103 | 1% | 86 | 1% | 96 | 1% |
| Aboriginal | 27 | 0% | 22 | 0% | 41 | 0% | 29 | 0% |
| Asian/Pacific Islander | 128 | 1% | 110 | 1% | 111 | 1% | 123 | 1% |
| Unknown | 24 | 0% | 27 | 0% | 32 | 0% | 23 | 0% |
| PSA (NG/ML) | ||||||||
| Median (interquartile range) | 1.1 | (0.6,1.9) | 1.1 | (0.6,1.9) | 1.1 | (0.6,1.9) | 1.1 | (0.6,1.8) |
| 0.1 - 1.0 | 4,133 | 48% | 4,234 | 48% | 4,247 | 49% | 4,235 | 49% |
| 1.1 - 2.0 | 2,735 | 31% | 2,648 | 30% | 2,652 | 30% | 2,657 | 31% |
| 2.1 - 3.0 | 1,153 | 13% | 1,222 | 14% | 1,199 | 14% | 1,147 | 14% |
| 3.1 - 4.0 | 668 | 8% | 627 | 7% | 649 | 7% | 656 | 7% |
| >4.0 | 5 | 0% | 3 | 0% | 2 | 0% | 1 | 0% |
| Missing | 2 | 0% | 3 | 0% | 3 | 0% | 6 | 0% |