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目的 探讨重症肝炎的危险因素。 方法 对211例重症肝炎患者进行病例对照研究，并用非条件Logistic回归模型对资料进行多因素分析。结果 患者的肝炎病毒重叠感染、肝损害药物史、病前过度劳累、合并其它疾病及其它感染5个因素是重症肝炎的主要危险因素。结论 积极避免上述情况，是防止重症肝炎发生的重要措施。
Objective To investigate the risk factors of severe hepatitis. Methods 211 cases of severe hepatitis patients were case-control study, and non-conditional Logistic regression model for multivariate analysis of the data. Results The five major risk factors for severe hepatitis were five factors of overlapping infection of hepatitis virus, history of hepatic impairment, over-exertion, combined with other diseases and other infections. Conclusion Actively avoiding the above situation is an important measure to prevent the occurrence of severe hepatitis.