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目的了解2010年秋季新疆普通人群甲型H1N1流感病毒抗体水平。方法根据《全国部分省份甲型H1N1流感病毒感染状况抽样调查方案》,采用多阶段分层随机抽样方法抽取调查对象进行个案调查,同时采集调查对象5 ml血液进行甲型H1N1抗体检测。结果调查对象甲型H1N1抗体阳性率为24.4%(1 270/5 195),省会城市、中小城市及农村抗体阳性率分别为31.5%、24.1%和19.0%,各层间差异有统计学意义(χ2=69.54,P<0.01);0岁～组、6岁～组、16岁～组、25岁～组、60岁～组抗体阳性率分别为26.0%、33.3%、35.2%、18.8%和8.3%,不同年龄组间抗体阳性率差异有统计学意义(χ2=269.68,P<0.01)。结论新疆省会城市人群甲型H1N1流感病毒感染率高于中小城市,而中小城市高于农村;青少年感染率高于其他年龄组,60岁～年龄组人群感染率低于其他年龄组。
Objective To understand the antibody level of Influenza A (H1N1) virus in the general population in Xinjiang in the autumn of 2010. Methods According to the “Sampling Investigation Plan of Influenza A (H1N1) Infections in Some Provinces of China”, a multi-stage stratified random sampling method was used to investigate the cases. At the same time, 5 ml of blood samples were collected to detect the type A H1N1 antibody. Results The positive rate of type A H1N1 antibody was 24.4% (1 270/5 195). The positive rates of antibody in capital cities, small and medium-sized cities and rural areas were 31.5%, 24.1% and 19.0%, respectively, with statistical significance χ2 = 69.54, P <0.01). The positive rates of antibodies in the groups of 0 years old, 6 years old, 16 years old, 25 years old, 60 years old were 26.0%, 33.3%, 35.2%, 18.8% 8.3%. The positive rate of antibody among different age groups was statistically significant (χ2 = 269.68, P <0.01). Conclusions The prevalence of Influenza A (H1N1) virus in Xinjiang provincial capitals is higher than that in small and medium-sized cities, while that in small and medium-sized cities is higher than that in rural areas. The prevalence of adolescent infections is higher than that of other age groups.