Numbers of patients (%) with colonic polyps or cancer
| Aspirin or NSAIDs n=74 | No aspirin or NSAIDs n=261 | Odds Ratio | (95% CI) | P value | |
|---|---|---|---|---|---|
| Polyps 1–5 mm | 23 (31%) | 45 (17%) | 2.16 (1.20–3.90) | 0.013 | |
| Polyps>5 mm | 10 (14%) | 71 (27%) | 0.42 (0.20–0.86) | 0.014 | |
| Polyps>5 mm or cancer | 12 (16%) | 88 (34%) | 0.38 (0.19–0.74) | 0.004 | |
| Polyps>10 mm or cancer | 7 (9%) | 50 (19%) | 0.44 (0.19–1.02) | 0.054 | |
| Cancer | 3 (4%) | 23 (9%) | 0.44 (0.13–1.50) | 0.22 | |