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Use of ASA and other salicylates among 373 cases of SCAR and 1720 controls according to type of preparation.
| Drug | Type of preparation | Cases | Controls | Crude relative risk estimate | Multivariate relative risk estimate (95% confidence interval) |
|---|---|---|---|---|---|
| Any salicylates | – | 47 | 133 | 1.7 | 1.3 (0.8,2.2) |
| ASA | Single ingredient | 31 | 92 | 1.6 | 1.5 (0.9,2.7) |
| Combination | 6 | 12 | 2.4 | 1.6 (0.4,6.3) | |
| Other salicylates | Single ingredient | 8 | 26 | 1.5 | 0.7 (0.2,2.7) |
| Combination | 2 | 3 | – | – |
