Table 2.
Results from meta-analysis of risk factors of colorectal cancer
| Factors | Number of references | Pooled OR and 95%CI | Factors | Number of references | Pooled OR and 95%CI |
| (1) History of chronic diarrhea | 7 | 4.80 (4.30-5.37) | (8) Pickled vegetables | 3 | 1.86 (1.67-2.07) |
| (2) History of fecal mucohemorrhage | 5 | 7.18 (5.06-10.21) | (9) High lipid food | 3 | 3.16 (2.22-4.51) |
| (3) History of bowel polyps | 5 | 12.69 (7.49-21.48) | (10) Proper physical activities | 4 | 0.74 (0.72-0.77) |
| (4) History of constipation | 4 | 2.23 (1.95-2.54) | (11) Alcohol drinking | 5 | 1.06 (0.91-1.24) |
| (5) History of appendicitis | 3 | 1.98 (1.71-2.28) | (12) Cigarette smoking | 5 | 1.40 (1.10-1.77) |
| (6) Dietary fibers | 5 | 0.79 (0.59-0.99) | (13) Emotional trauma | 4 | 2.95 (2.81-3.09) |
| (7) Fish fry-cooked with soybean sauce |
4 |
2.99 (2.69-3.35) |
(14) Family history of cancers |
7 |
2.27 (2.12-2.44) |
| (1) references: 1, 2, 5, 7, 9, 13, 14 | (2) references: 1, 5, 7, 9, 13 | (3) references: 1, 2, 5, 7, 12 | |||
| (4) references: 1, 5, 7, 9 | (5) references: 1, 2, 5 | (6) references: 4, 6, 10, 11, 14 | |||
| (7) references: 1, 5, 6, 7 | (8) references: 2, 6, 14 | (9) references: 4, 5, 14 | |||
| (10) references: 4, 10, 13, 14 | (11) references: 2, 5, 8, 13, 14 | (12) references: 2, 5, 6, 8, 14 | |||
| (13) references: 1, 4, 5, 7 | (14) references: 1, 3, 4, 5, 6, 7, 14 | ||||