Analysis on reporting of unknown etiology pneumonia cases in China, 2004 - 2009
摘要: 目的 分析中国2004 - 2009年不明原因肺炎病例的报告情况,探讨可能的报告影响因素。 方法 以2004 - 2009年各省报告的不明原因肺炎病例为研究对象,分析不同分组病例的发病、诊断、报告、审核时间序列。 结果 2004 - 2009年全国共报告不明原因肺炎病例864例,2004年4-5月北京市和安徽省传染性非典型肺炎疫情、2005 - 2006年冬春季和2009年初的人禽流感疫情同期,有明显的报告高峰。不明原因肺炎发病-诊断的平均间隔为5.0 d,诊断-报告的间隔为0.7 d,报告-审核的间隔为0.1 d。人禽流感疫情发病高峰期间报告的不明原因肺炎发病-诊断间隔(8.0 d)长于其他时间段。最终诊断为人禽流感病例的不明原因肺炎发病-诊断的间隔(8.0 d)长于非人禽流感病例。 结论 不明原因肺炎监测对中国人禽流感病例的发现有重要作用,但仍存在很多问题。根据目前的监测实施现状,建议对监测病例定义和监测流程等进行调整,以更好地实现监测目的。Abstract: Objective To analyze the reporting of unknown etiology pneumonia (UEP) cases from 2004 to 2009 in China and explore the possible influencing factors. Methods The analysis was conducted on the intervals between illness onset and diagnosing, diagnosing and reporting as well as reporting and verifying of the UEP cases reported through passive reporting surveillance system during this period. Results A total of 864 cases were reported from 2004 to 2009, the reported incidence peaked during the SARS epidemic in Beijing and Anhui from April to May in 2004, and during the epidemics of human avian influenza in winter of 2005 and spring of 2006 and in early 2009. The medians of interval between illness onset and diagnosing, diagnosing and reporting as well as reporting and verifying were 5.0 days, 0.7 day and 0.1 day respectively. The median of interval (8.0 days) between illness onset and diagnosing of UEP cases reported during the two epidemic peak periods of human avian influenza were longer than that in other period. The median of interval (8.0 days) between illness onset and diagnosing of the UEP cases which were diagnosed as human avian influenza was longer than that of the UEP cases which werent diagnosed as human avian influenza. Conclusion Though the UEP surveillance played an important role in the case finding of human avian influenza, the problems still exist. According to the surveillance situation, it is suggested that the case definition of UEP and surveillance procedure should be revised to improve the surveillance.
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