Table 1 Characteristics of the study participants included in the gene-diabetes interaction analysis for colorectal cancer risk.
Colorectal cancer cases (N = 31,318) | Controls (N = 41,499) | |
|---|---|---|
Age (years)a | 63.3 (±10.1) | 62.1 (±8.97) |
Sex | ||
Women | 47.4% | 49.4% |
Tumor site | ||
Proximal | 29.2% | |
Distal | 24.9% | |
Rectal | 26.0% | |
Missing | 19.9% | |
Body mass index (kg/m2)a | 27.4 (±4.86) | 27.0 (±4.61) |
Missing | 6.6% | 3.5% |
Height (cm)a | 170 (±9.61) | 169 (±9.59) |
Missing | 1.7% | 0.7% |
Family history of colorectal cancer | ||
Yes | 13.5% | 10.5% |
Missing | 18.6% | 26.9% |
Education (highest completed) | ||
Less than High School | 24.8% | 20.1% |
College/Graduate School | 26.5% | 31.7% |
Missing | 9.3% | 10.0% |
Smoking status | ||
Ever | 53.2% | 49.9% |
Missing | 4.5% | 1.8% |
Post-menopausal hormone useb | ||
Yes | 25.5% | 29.6% |
Missing | 25.9% | 19.9% |
Regular aspirin or NSAID use | ||
Yes | 25.2% | 32.1% |
Missing | 25.1% | 16.7% |
Diabetes | ||
Yes | 11.4% | 7.7% |
Red meat consumption | ||
Highest quartile | 18.7% | 16.0% |
Missing | 15.4% | 8.5% |
Processed meat consumption | ||
Highest quartile | 13.8% | 11.8% |
Missing | 25.5% | 16.4% |
