Table 1.

Demographic and health-related characteristics of SELECT case–cohort sample

Prostate cancer cases (n = 1,731)Cohorta (n = 3,203)
Age, y
Mean ± SD63.5 ± 6.163.3 ± 6.5
 50–5444 (2.5)128 (4.0)
 55–59461 (26.6)856 (26.7)
 60–64520 (30.0)935 (29.2)
 65–69408 (23.6)750 (23.4)
 ≥70298 (17.2)534 (16.7)
Race
 White1,394 (80.5)2,213 (69.1)
 African American250 (14.4)802 (25.0)
 Other/unknown87 (5.0)188 (5.9)
BMI, kg/m2
Mean ± SD28.5 ± 4.328.8 ± 4.6
 <25335 (19.4)615 (19.2)
 25–<30875 (50.5)1,506 (47.0)
 ≥30521 (30.1)1,082 (33.8)
Gleason grade
 2–61,014 (58.6)128 (63.7)b
 7–10502 (28.9)60 (29.9)
 8–10104 (6.0)12 (6.0)
Family history of prostate cancer
 No1,231 (71.1)2,729 (85.2)
 Yes500 (28.9)474 (14.8)
Trial arm
 Placebo407 (23.5)790 (24.7)
 Vitamin E474 (27.4)813 (25.4)
 Selenium431 (24.9)800 (25.0)
 Vitamin E + selenium419 (24.2)800 (25.0)
  • a201 men are both cases and in the cohort.

  • bNumber (%) of total cases.