Table 2 Independent associations between clinical features and colorectal cancer in the final multivariable conditional logistic regression model.
Clinical feature | Odds ratio (confidence interval) | |
|---|---|---|
Symptoms | ||
Rectal bleeding | 20 (17 to 23) | |
Change in bowel habit | 14 (12 to 17) | |
Abdominal pain | 3.9 (3.6 to 4.3) | |
Diarrhoea | 2.4 (2.1 to 2.7) | |
Constipation | 2.1 (1.9 to 2.3) | |
Weight loss | ||
5.0–9.9% | 1.2 (0.99 to 1.5) | |
≥ 10% | 2.5 (2.1 to 3.0) | |
Investigations | ||
Haemoglobin (g/dl) | ||
12.0–12.9 | 1.7 (1.5 to 1.9) | |
11.0–11.9 | 2.8 (2.4 to 3.2) | |
10.0–10.9 | 5.9 (4.8 to 7.2) | |
9.0–9.9 | 9.3 (7.1 to 12) | |
< 9.0 | 18 (14 to 25) | |
Mean red cell volume < 80 fl | 6.5 (5.3 to 7.9) | |