Table 1

Characteristics of cases and controls (%)a

Esophagus (n = 215)Stomach (n = 254)Pancreas (n = 504)Gallbladder (n = 125)Liver (n = 51)Controls (n = 595)
Male73.548.053.645.651.047.8
Female26.552.046.454.449.052.2
Age
<5023.825.220.323.225.561.6
50–5934.031.934.135.235.320.9
60–6942.342.945.641.639.217.6
Race
White73.075.687.389.678.474.3
Black24.220.911.57.217.622.6
Other2.83.51.23.23.93.2
Education
<1234.422.817.515.219.618.4
1228.439.036.240.843.132.4
≥1336.737.846.144.037.348.6
Religion
Jewish3.313.014.78.07.89.8
Catholic37.244.539.947.237.342.6
Protestant47.029.135.336.033.337.4
Other2.33.91.62.404.7
Alcohol consumption
Current drinker68.463.468.360.056.974.7
Ex-drinker15.811.011.96.417.67.2
Never drank10.724.018.531.221.617.1
Cigarette smoking
Current smoker44.234.433.027.235.239.7
Ex-smoker37.726.034.534.441.223.2
Never smoked18.138.631.538.421.636.1
  • a May not sum to 100% because of exclusion of subjects with missing values.