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Table 2 Independent associations between clinical features and colorectal cancer in the final multivariable conditional logistic regression model.

From: The risk of colorectal cancer with symptoms at different ages and between the sexes: a case-control study

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)
  1. Note: associations adjusted for each other; all features have P < 0.001.