上海市人群附红细胞体感染因素分析

Factors analysis of human Eperythrozoon infection in Shanghai

目的了解上海市人群附红细胞体感染相关因素。方法按照分层随机抽样的方法分别以中心城区、城郊结合区和郊区作为人群附红细胞体感染因素调查点,用镜检血涂片方法检查附红细胞体的感染情况,同时对被检查者进行问卷调查。结果1)共调查997人,感染129人,年龄标化感染率为12.16%,感染者均为轻度感染;2)中心城区、城郊结合区和郊区标化感染率分别为15.83%、17.67%、6.86%,差异有统计学意义(χ2=19.97,P<0.05),其中,郊区感染率显著低于中心城区和城郊结合区(χ2值分别为13.82和18.85,P均<0.05),中心城区和城郊结合区感染率差异无统计学意义(χ2=0.34,P>0.05);3)不同性别、年龄、文化程度、职业人群感染率差异均无统计学意义(χ2分别为3.45,3.23,7.91,8.38,P值均>0.05);接触动物及有其他疾病史者与相应对照人群间附红体感染率差异无统计学意义(χ2值分别为1.62和0.81,P>0.05)。结论上海市人群中存在附红细胞体的轻度感染,且有地区分布差异。

Objective To learn the factors of human Eperythrozoon infection in Shanghai. Methods Three survey sites were set in urban, suburb and country areas, human blood samples were made smears to examine Eperythrozoon under microscope, and every examined person was asked to fill in the questionnaire at the same time. Results Nine hundred and ninety-seven persons were inspected in this survey. Overall standard infection rate of Eperythrozoon was 12.61%. The standard infection rates of the people dwell in urban, suburb and country areas are 15.83%, 17.67% and 6.86%, and there were significant difference among them （x^2 =19.97, P〈0.05）. The infection rate of country site was significantly different from the rates of urban and suburb sites （x^2 = 13.82 and 18.85 ,P〈0.05）, but no significant difference was found between the rate of urban and suburb site （x^2 = 0.34, P〉0.05）. The infection rates of different groups of gender, age, educational, l.evel, and occupation were found no significant difference （X^2 = 3.45,3.23,7.91, 8.38, P〉0.05）. And no significance was also found between the infection rates of persons contacting animal or having other diseases and the controls （X^2=1.62 and 0. 81,P〉0.05）. Conclusion Eperythrozoon infect human commonly with small burthen in Shanghai, and the infection rates of urban, suburb and country area were different.