Table 1

 Characteristics of stomach and oesophageal cancer cases, and controls

CharacteristicsControls (n = 502)Stomach cancer (n = 170)Oesophagus cancer (n = 137)
No.%Cases%Cases%
*Ever first degree relative with stomach or oesophageal cancers.
Age
    ⩽5417434.62212.93525.5
    55–6916833.55834.16346.0
    ⩾7016031.99053.03928.5
Gender
    Male28456.69757.112188.3
    Female21843.47342.91611.7
Smoking
    Never23048.08754.72922.7
    <30 cigarettes/day17135.74729.66349.2
    ⩾30 cigarettes/day7816.32515.73628.1
Alcohol
    Never19539.57343.23022.2
    Current16232.82514.82619.3
    Past13727.77142.07958.5
Respondent type
    Self19839.43420.03324.1
    Proxy30460.613680.010475.9
Education
    <College29458.611970.08562.0
    ⩾College20841.45130.05238.0
Body mass index (kg/m2)
    ⩽23.015932.54929.72417.8
    23.1–25.010621.72515.22619.3
    25.1–27.511523.54527.33928.8
    ⩾27.610922.34627.84634.1
Family history of gastric or oesophageal cancer*
    No23350.85435.56046.5
    Yes22649.29864.56953.5