Table 1.

Entry characteristics of participants by quintile of serum cholesterol concentration, placebo arm of the PCPT

AllQuintile of serum cholesterol concentrationP
12345
Median (range) serum cholesterol (mg/dL)209 (60-408)167 (60-181)191 (182-200)208 (201-218)227 (219-240)257 (241-408)
n5,5861,0981,0721,1641,0991,153
Mean age (y)62.863.163.162.962.962.20.0013
Non-White (%)6.68.15.15.76.47.70.02
Mean BMI (kg/m2)27.327.427.227.127.527.60.04
Mean height (inches)69.970.070.269.869.869.6<0.0001
Education (%)
    <High school1.20.90.61.51.31.40.49
    High school16.414.916.815.917.017.5
    >High school82.484.382.682.781.781.0
Cigarette smoking (%)
    Never34.537.936.434.934.229.3<0.001
    Former58.754.657.159.557.864.2
    Current6.87.56.55.68.06.5
Physical activity (%)
    Sedentary16.717.116.514.116.919.20.41
    Light41.842.040.742.342.641.6
    Moderate31.430.832.432.830.730.1
    Active9.79.89.910.59.68.9
Family history of prostate cancer (%)16.917.615.816.516.917.60.78
Mean PSA (ng/mL)1.261.201.261.261.251.310.02
History of diabetes (%)5.08.54.93.84.04.0<0.0001
History of heart attack (%)4.25.84.34.42.93.70.02
Regular aspirin use (%)50.047.749.653.248.550.50.08
Vasectomy (%)34.035.935.031.133.534.50.14
Alcohol intake (g/d)9.88.88.79.311.610.4<0.0001
Red meat intake (servings/d)0.610.600.590.590.630.620.03
Energy-adjusted cholesterol intake (mg/d)2812852822762812820.30
Calcium intake, diet and supplements (mg)926938936953933872<0.0001

NOTE: All characteristics (except for age) are age adjusted and were calculated as least squares means from linear regression models.