上海市冬春季甲型、戊型肝炎发病危险因素调查

[目的 ]　了解上海市冬春季甲型、戊型肝炎发病危险因素。 [方法 ]　病例、对照 1∶2配对调查 ,选择本市1999年 10月 1日至 2 0 0 0年 2月 2 9日临床和血清学诊断为甲型和戊型肝炎的病人作为调查对象 ,采用单因素和多因素条件Logistic回归分析。[结果 ]　饭前便后不洗手、外出就餐史、食用贝壳类和到个体摊点及饮食店就餐的OR值分别为 2 .0 86、1.76 1、1.413和 1.36 7。 [结论 ]　上海市冬春季甲型、戊型肝炎发病危险因素仍以饭前便后不洗手、经常外出吃饭、食用贝壳类和到个体摊点及饮食店就餐等为主

Investigation on risk factors for hepatitis A and E incidence in winter and spring in Shanghai

Objetive] To explore the risk factors for hepatitis A(HA) and E(HE) incidence in winter and spring in Shanghai. [Methods] Case-control study was designed. Patients diagnosed as HA or HE by clinic and serology from October 1st 1999 to February 29th 2000 were used. Each patient was matched with two controls. Single factor and multiple factors conditional Logistic regression were used in analysis. [Results] The OR values of not washing hands before meals or after defecation, often take meals not at home, eating shell seafood and take food at stalls or traorria were 2.086,1.761, 1.413 and 1.367 respectively. [Conclusion] Not washing hands before meals or after defecation, often take meals not at home, eating shell seafood and often take food at stalls or traorria were still the most important risk factors for acute hepatitis A and E incidence in Shanghai.