Table 1.
Characteristics of all study subjects.
| Cases (n = 729) | Controls (n = 657) | P value | |
|---|---|---|---|
| Men, n (%) | 490 (67.2) | 425 (64.7) | |
| Women, n (%) | 239 (32.8) | 232 (25.3) | |
| Continuous variables | |||
| Age (years), mean (SD) | 60.6 (6.1) | 59.6 (5.9) | 0.0037 |
| BMI (kg/m2), mean (SD) | 23.6(2.9) | 23.0 (2.8) | 0.0001 |
| Physical activity (METs-hour/day), mean (SD) | 37.1 (9.8) | 36.5 (7.9) | 0.18 |
| Total energy (kcal/day), median (IQR) | 1938 (1606–2359) | 1855.0 (1558–2245) | 0.0083 |
| Total fiber (g/day)b, median (IQR) | 12.3 (9.18–16.1) | 12.9 (10.0–16.5) | 0.012 |
| Total meat (g/day)b, median (IQR) | 45.3 (26.8–68.9) | 43.6 (27.1–67.5) | 0.35 |
| CRP (mg/L), median (IQR) | 0.4 (0.2–0.8) | 0.3 (0.2–0.7) | 0.0059 |
| Categorical variables | |||
| Smoking, n (%) | < 0.0001 | ||
| Current smoker | 146 (20.0) | 69 (10.5) | |
| Past smoker | 257 (35.3) | 244 (37.1) | |
| Never smoker | 326 (44.7) | 344 (52.4) | |
| Drinking, n (%) | 0.16 | ||
| Current drinker | 536 (73.5) | 467 (71.1) | |
| Past drinker | 36 (4.9) | 24 (3.7) | |
| Never drinker | 157 (21.5) | 166 (25.3) | |
| Family CRC history, n (%) | 121 (16.6) | 79 (12.0) | 0.016 |
| Diabetes Mellitus, n (%) | 68 (9.3) | 40 (6.1) | 0.025 |
aN, number of subjects; BMI, body mass index; METs, metabolic equivalents; CRC, colorectal cancer; SD, standard deviation; IQR, inter-quartile range.
bEnergy-adjusted.