甲型H1N1流感病毒感染与性别关系的统计分析

摘要

Objective To investigate if the probability of male infected Alpha H1N1 influenza virus is the same as that of female.MethodsWe built a four- dimensional contingency tables according to the number of males and females who infected Alpha H1N1 influenza virus in Beijing from the beginning of 2009 to November 1st, 2009. ResultsThen we carried out a hypothesis test to decide whether the probability of male infected Alpha H1N1 influenza virus is the same as that of female by testing independence. The results of Pearson Chi-Squared test and Likelihood-Ratio Chi-Squared test showed the null hypothesis should be rejected.Conclusion Therefore, we suggested that male more prone to suffer from the H1N1 virus than female.%目的：探讨男性与女性感染甲型H1N1流感病毒的概率是否相同。方法根据2009年北京市截止到11月1日感染甲型H1N1流感病毒的男女人数，建立一个四格表，提出检验原假设男性感染甲型H1N1流感病毒的概率等于女性感染的概率。结果用列联表独立性检验对此表进行数据分析，皮尔逊x2检验以及似然比检验结果均表明拒绝原假设，即认为男性与女性感染甲型H1N1流感病毒的机率不同。结论从而进一步推测男性比女性更易感染甲型H1N1流感病毒。