Table 1

Selected baseline characteristics of prostate cancer cases and controls: the Physicians’ Health Study

Cases(n = 578)Controls(n = 1294)
Mean age (yr)a60.761.5
Stage at diagnosis (%)
 Localized60.9
 Regional18.4
 Distant12.0
 Unknown8.7
Cigarette smokers (%)a
 Current8.39.1
 Former45.946.4
Alcohol use once or more than once a day (%)32.932.0
Exercise more than once a week (%)57.053.2
Mean body mass index24.924.7
  • a Controls were matched to cases on age and smoking history.