Table 1

Demographic characteristics of prostate cancer cases and controlsa

No. of cases%No. of controls%P
Total65130
Age
 <603147.711790.0
 60–692946.6118.5
 ≥7057.721.50.001
Mean (SD)59.98 (±6.19)41.9 (±13.64)0.001
Race
 White6092.312696.9
 Non-white57.743.10.148
Education (yr)
 ≥122335.92217.2
 13–161929.76450.0
 >162234.44232.80.005
Mean (SD)14.94 (±4.20)15.72 (±2.37)0.170
Smoking
 No2741.58060.6
 Yes3858.55239.40.012
Pack-yr of smoking
 No2741.58060.6
 ≤301827.73529.6
 >302030.8139.80.001
Alcohol consumption
 No34.63123.5
 Yes6295.410176.50.001
Family history of prostate cancer
 No5381.512090.9
 Yes1218.5129.10.059
  • a Ps were obtained by Student’s t-test for continuous variable and Fisher’s exact test or χ2 test for categorical variables.