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Estimated relative risk for VTE in patients with an acute medical event during the 3 months prior to the index date.
| Cases (n = 132) | Controls (n = 773) | Adjusted odds ratio (95% CI)* | |
|---|---|---|---|
| No risk factor | 106 | 767 | 1.0 |
| Risk factor | 26 | 6 | 17 (6.5, 46) |
| Total | 132 | 773 |
Controls matched on age, index date, general practice. Estimates adjusted for type of oral contraceptive used.
