Table 1

Characteristics of study subjects

Colorectal adenomaColorectal cancer
Case subjectsControl subjectsCase subjectsControl subjects
n862582266
Sex (% women)3.53.54.64.6
Age (years)54.0 ± 6.454.0 ± 6.453.8 ± 7.953.8 ± 7.7
Smoking (%)
    Lifetime nonsmoker15.126.013.621.2
    ≤600 cigarette-years38.436.145.539.4
    >600 cigarette-years46.538.040.939.4
Alcohol use (%)
    Nondrinker24.426.722.740.9
    Drinking ≤1 go/day37.241.936.427.3
    Drinking >1 go/day38.431.440.931.8
BMI (kg/m2)23.7 ± 3.023.8 ± 2.925.5 ± 3.823.7 ± 2.9
Waist circumference (cm)85.2 ± 8.585.9 ± 8.789.5 ± 14.684.4 ± 8.0
Total fat area (cm2)247 ± 101253 ± 95290 ± 120240 ± 93
Visceral fat area (cm2)122 ± 56124 ± 52140 ± 42115 ± 54
Subcutaneous fat area (cm2)125 ± 57129 ± 55150 ± 87125 ± 52
Fasting glucose (mg/dl)106 ± 20108 ± 19118 ± 39109 ± 20
Fasting insulin (μU/dl)6.7 ± 4.36.9 ± 4.19.2 ± 7.57.3 ± 4.4
HOMA-IR1.79 ± 1.261.88 ± 1.272.71 ± 2.492.02 ± 1.36
  • Data are means ± SD unless stated otherwise.