The purpose of this case-control study is to estimate the risks of Stevens-Johnson syndrome or toxic epidermal necrolysis associated with the use of specific drugs. The suspected cases were identified from the computerized hospital discharge file. We calculated crude relative risks and adjusted them for confounding by multivariate analysis. The analysis was based on 35 cases and 105 controls. This study showed that the use of carbamazepine, phenytoin and allopurinol is most associated with the risks in the oriental population.
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