论文部分内容阅读
目的分析北京市2009年甲型H1N1流感流行病学特征。方法采用SPSS11.0软件,对北京市2009年甲型H1N1流感确诊病例的流行病学特征进行描述与分析。结果 2009年北京市共确诊甲型H1N1流感10 802例,重症、危重症病例621例,死亡73例,病死率为0.7%(73/10 802);北京市甲型H1N1流感流行过程可分为输入期、传播期、扩散期、稳中有降期等4个阶段;感染者以青少年为主,占47.9%(5169/10 802),男女性别比为1.3∶1;职业分布以学生最多,占52.2%(5 639/10 802),重症、危重症病例及死亡病例均以离退人员为多,分别为15.9%(99/621)及23.3%(17/73);10月份达到流行高峰。结论北京市2009年甲型H1N1流感病例以青少年学生为主,重症、危重症病例及死亡病例均以离退人员为多。
Objective To analyze the epidemiological characteristics of Influenza A (H1N1) in Beijing in 2009. Methods The SPSS11.0 software was used to describe and analyze the epidemiological characteristics of 2009 H1N1 influenza in Beijing. Results A total of 10 802 cases of Influenza A (H1N1) were diagnosed in Beijing in 2009 with 621 cases of severe and critically ill cases, of which 73 died. The case fatality rate was 0.7% (73/10 802). The prevalence of Influenza A (H1N1) in Beijing was (47.9% (5169/10 802)), male-to-female sex ratio was 1.3: 1; the occupational distribution was the most with students, Accounting for 52.2% (5639/10802). The number of critically ill patients, critically ill patients and deaths were mostly retired, accounting for 15.9% (99/621) and 23.3% (17/73), respectively. The peak was reached in October . Conclusions The cases of Influenza A (H1N1) in 2009 in Beijing were mainly young students. There were more cases of severe, critically ill and fatal cases and deaths in Beijing.