Characteristics | Colorectal cancer cases | Controls | Pa | OR | (95% CI)b | Pb | ||
---|---|---|---|---|---|---|---|---|
(N = 703, 100%) | (N = 1406, 100%) | |||||||
N | (%) | N | (%) | |||||
Age, years | ||||||||
mean (SD) | 56.4 | (9.6) | 56.0 | (9.1) | 0.31 | |||
< 50 | 159 | (22.6) | 318 | (22.6) | > 0.99 | 1.00 | (ref.) | |
≥ 50 | 544 | (77.4) | 1088 | (77.4) | 1.10 | (0.87–1.40) | 0.41 | |
Sex | ||||||||
Women | 223 | (31.7) | 446 | (31.7) | > 0.99 | 1.00 | (ref.) | |
Men | 480 | (68.3) | 960 | (68.3) | 0.96 | (0.78–1.18) | 0.68 | |
Family history of colorectal cancer | ||||||||
No | 636 | (90.5) | 1339 | (95.2) | < 0.01 | 1.00 | (ref.) | |
Yes | 67 | (9.5) | 67 | (4.8) | 2.27 | (1.56–3.32) | < 0.01 | |
BMI, kg/m2 | ||||||||
mean (SD) | 23.8 | (3.4) | 24.1 | (2.7) | 0.04 | |||
< 25.0 | 478 | (68.0) | 930 | (66.2) | 0.47 | 1.00 | (ref.) | |
≥ 25.0 | 225 | (32.0) | 470 | (33.4) | 0.87 | (0.71–1.07) | 0.19 | |
History of colorectal polyps | ||||||||
No | 628 | (89.3) | 1227 | (87.3) | 0.17 | 1.00 | (ref.) | |
Yes | 75 | (10.7) | 179 | (12.7) | 0.94 | (0.69–1.28) | 0.70 | |
History of IBD | ||||||||
No | 701 | (99.7) | 1401 | (99.6) | 0.79 | 1.00 | (ref.) | |
Yes | 2 | (0.3) | 5 | (0.4) | 0.67 | (0.12–3.87) | 0.66 | |
History of DM | ||||||||
No | 616 | (87.6) | 1287 | (91.5) | < 0.01 | 1.00 | (ref.) | |
Yes | 87 | (12.4) | 119 | (8.5) | 2.27 | (1.56–3.32) | < 0.01 | |
Alcohol drinking | ||||||||
Never | 212 | (30.2) | 419 | (29.8) | 0.87 | 1.00 | (ref.) | |
Ever | 491 | (69.8) | 987 | (70.2) | 1.07 | (0.84–1.36) | 0.59 | |
Smoking | ||||||||
Never | 316 | (45.0) | 617 | (43.9) | 0.64 | 1.00 | (ref.) | |
Ever | 387 | (55.1) | 789 | (56.1) | 0.88 | (0.68–1.15) | 0.36 | |
Regular exercise | ||||||||
Yes | 229 | (32.6) | 566 | (40.3) | < 0.01 | 1.00 | (ref.) | |
No | 474 | (67.4) | 833 | (59.3) | 2.97 | (2.43–3.62) | < 0.01 | |
Regular aspirin use | ||||||||
Yes | 20 | (2.8) | 134 | (9.5) | < 0.01 | 1.00 | (ref.) | |
No | 683 | (97.2) | 1272 | (90.5) | 3.26 | (1.97–5.41) | < 0.01 | |
HRT in postmenopausal women | ||||||||
Ever | 31 | (19.1) | 99 | (30.9) | < 0.01 | 1.00 | (ref.) | |
Never | 130 | (80.3) | 219 | (68.4) | 1.50 | (0.92–2.44) | 0.11 | |
Red meat intake, g/dayc | ||||||||
mean (SD) | 51.2 | (33.4) | 58.0 | (39.0) | < 0.01 | |||
< 100 | 643 | (87.3) | 1228 | (87.3) | < 0.01 | 1.00 | (ref.) | |
≥ 100 | 58 | (8.3) | 176 | (12.5) | 0.66 | (0.47–0.92) | 0.02 | |
Processed meat intake, g/dayc | ||||||||
mean (SD) | 1.1 | (9.1) | 2.5 | (13.2) | < 0.01 | |||
< 50 | 699 | (99.4) | 1395 | (99.2) | 0.29 | 1.00 | (ref.) | |
≥ 50 | 2 | (0.3) | 9 | (0.6) | 0.78 | (0.16–3.93) | 0.77 | |
Dairy consumption, g/dayc | ||||||||
mean (SD) | 72.6 | (147.5) | 236.4 | (807.3) | < 0.01 | |||
≥ 400 | 16 | (2.3) | 198 | (14.1) | < 0.01 | 1.00 | (ref.) | |
< 400 | 685 | (97.8) | 1206 | (85.8) | 2.23 | (1.53–3.25) | < 0.01 |