Table 1.
Characteristics of study subjects
| Colorectal adenoma |
Colorectal cancer |
|||
|---|---|---|---|---|
| Case subjects | Control subjects | Case subjects | Control subjects | |
| n | 86 | 258 | 22 | 66 |
| Sex (% women) | 3.5 | 3.5 | 4.6 | 4.6 |
| Age (years) | 54.0 ± 6.4 | 54.0 ± 6.4 | 53.8 ± 7.9 | 53.8 ± 7.7 |
| Smoking (%) | ||||
| Lifetime nonsmoker | 15.1 | 26.0 | 13.6 | 21.2 |
| ≤600 cigarette-years | 38.4 | 36.1 | 45.5 | 39.4 |
| >600 cigarette-years | 46.5 | 38.0 | 40.9 | 39.4 |
| Alcohol use (%) | ||||
| Nondrinker | 24.4 | 26.7 | 22.7 | 40.9 |
| Drinking ≤1 go/day | 37.2 | 41.9 | 36.4 | 27.3 |
| Drinking >1 go/day | 38.4 | 31.4 | 40.9 | 31.8 |
| BMI (kg/m2) | 23.7 ± 3.0 | 23.8 ± 2.9 | 25.5 ± 3.8 | 23.7 ± 2.9 |
| Waist circumference (cm) | 85.2 ± 8.5 | 85.9 ± 8.7 | 89.5 ± 14.6 | 84.4 ± 8.0 |
| Total fat area (cm2) | 247 ± 101 | 253 ± 95 | 290 ± 120 | 240 ± 93 |
| Visceral fat area (cm2) | 122 ± 56 | 124 ± 52 | 140 ± 42 | 115 ± 54 |
| Subcutaneous fat area (cm2) | 125 ± 57 | 129 ± 55 | 150 ± 87 | 125 ± 52 |
| Fasting glucose (mg/dl) | 106 ± 20 | 108 ± 19 | 118 ± 39 | 109 ± 20 |
| Fasting insulin (μU/dl) | 6.7 ± 4.3 | 6.9 ± 4.1 | 9.2 ± 7.5 | 7.3 ± 4.4 |
| HOMA-IR | 1.79 ± 1.26 | 1.88 ± 1.27 | 2.71 ± 2.49 | 2.02 ± 1.36 |
Data are means ± SD unless stated otherwise.