Table 1.

Baseline characteristics of prostate cancer cases and controls in the MECa

Cases (N = 307)Controls (N = 596)
Age at blood draw, mean (SD)b, y69.0 (7.1)68.9 (7.2)
Fasting hours prior to blood draw, mean (SD)b13.6 (2.5)13.8 (2.6)
Ethnicity, n (%)b
 African American124 (40.4)239 (40.1)
 Japanese American70 (22.8)137 (23.0)
 Latino49 (16.0)95 (15.9)
 Native Hawaiian12 (3.9)22 (3.7)
 White52 (16.9)103 (17.3)
Smoking status, n (%)
 Never102 (33.2)186 (31.3)
 Former162 (52.8)341 (57.3)
 Current43 (14.0)68 (11.4)
Years of education, mean (SD)14.0 (2.7)13.9 (2.9)
Family history of prostate cancer, n (%)38 (12.4)52 (8.7)
BMI, mean (SD), kg/m226.1 (3.9)26.2 (4.0)
METs of activity per day, mean (SD), h1.6 (0.3)1.6 (0.3)
Alcohol consumption (% total energy), mean (SD)3.7 (7.4)4.1 (7.2)

Abbreviation: MET, metabolic equivalent.

  • aCases and controls were matched on geographic location (California or Hawaii), ethnicity (African American, Japanese American, Latino, Native Hawaiian, or white), year of birth (±1 year), date (±6 months) and time (±2 hours) of specimen collection, fasting status (0 to <6, 6 to <8, 8 to <10, and 10+ hours).

  • bMatching variables.