Crude odds ratios for exposure variables (hospital controls)
| Drug | No (%) of cases (n=1096) | No (%) of controls (n=2184) | Unadjusted odds ratio (95% confidence interval) | P value |
|---|---|---|---|---|
| Oral non-steroidal anti-inflammatory drugs: | ||||
| 45 Day exposure | 186 (17.0) | 206 (9.4) | 1.98 (1.60 to 2.46) | <0.001 |
| Ever exposure | 457 (41.7) | 909 (41.6) | 1.00 (0.86 to 1.17) | 0.970 |
| Topical non-steroidal anti-inflammatory drugs: | ||||
| 45 Day exposure | 23 (2.1) | 29 (1.3) | 1.59 (0.92 to 2.74) | 0.099 |
| Ever exposure | 97 (8.9) | 192 (8.8) | 1.00 (0.78 to 1.30) | 0.983 |
| Ulcer healing drugs: | ||||
| 45 Day exposure | 242 (22.1) | 288 (13.2) | 1.88 (1.55 to 2.28) | <0.001 |
| Ever exposure | 417 (38.0) | 569 (26.1) | 1.75 (1.50 to 2.05) | <0.001 |