论文部分内容阅读
目的分析河南省2005-2010年肾综合征出血热(HFRS)患者发病时间聚集性和分布特征,探讨集中度和圆形分布法的应用。方法应用集中度结合圆形分布法对河南省2005-2010年HFRS患者发病时间数据进行分析。结果河南省2005-2010年HFRS集中度M值依次为0.356、0.243、0.370、0.341、0.489和0.746;圆形分布平均角依次为338.21°、12.47°、296.03°、341.19°、319.87°和314.42°。除2006和2007年外,河南省HFRS发病具有明显季节性(P<0.05),各年发病高峰日不完全相同(P<0.05)。结论河南省HFRS发病存在明显的季节高峰,其发病高峰日多集中在11、12月,近年来HFRS发病高峰有前移的趋势。
Objective To analyze the time clustering and distribution characteristics of hemorrhagic fever with renal syndrome (HFRS) in Henan Province during 2005-2010 and to explore the application of the concentration and circular distribution method. Methods The concentration and circular distribution method was used to analyze the incidence of HFRS patients in Henan Province from 2005 to 2010. Results The concentration values of HFRS in Henan Province from 2005 to 2010 were 0.356,0.243,0.370,0.341,0.489 and 0.746, respectively. The average circular distribution angles were 338.21 °, 12.47 °, 296.03 °, 341.19 °, 319.87 ° and 314.42 °, respectively . In addition to 2006 and 2007, the incidence of HFRS in Henan Province was significantly seasonal (P <0.05), the peak incidence of each year is not exactly the same (P <0.05). Conclusions There is a clear seasonal peak in the incidence of HFRS in Henan Province. The peak incidence of HFRS in Henan Province is mostly concentrated in November and December. In recent years, the peak incidence of HFRS has a tendency to move forward.