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经对病人血清中特异性抗甲型病毒性肝炎(甲肝)IgM抗体的检测结果证实,1988年元月上海市区爆发的急性肝炎为甲肝。配对的病例-对照调查表明其直接发病原因为居民生食不洁毛蚶。经均衡可能混杂因素的成组分层分析得到的食用毛蚶比不食毛蚶罹患甲肝的相对危险度高62.4倍。
After the patient’s serum specific anti-hepatitis A (IgA) IgM antibody test results confirmed that January 1988 in Shanghai downtown area of acute hepatitis A hepatitis. Paired cases - the control survey showed that the direct cause of the disease is due to residents of raw unclean hair. The relative risk of edible catfish obtained by stratified stratified analysis of balanced and possibly confounding factors is 62.4 times higher than that of non-euthanasia.