Seasonality of clustering of fever and diarrhea in Beijing, 2009-2015
10.3760/cma.j.issn.0254-6450.2017.01.017
- VernacularTitle:北京市2009-2015年发热、腹泻症状聚集性疫情季节分布特征分析
- Author:
Xitai LI
1
;
Yanwei CHEN
;
Zhanying HE
;
Shuang LI
;
Zhiyong GAO
;
Xiong HE
;
Quanyi WANG
Author Information
1. 100013,北京市疾病预防控制中心传染病地方病控制所
- Keywords:
Fever;
Diarrhea;
Symptom surveillance;
Seasonal distribution
- From:
Chinese Journal of Epidemiology
2017;38(1):86-89
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the seasonal distribution of the clustering of fever and diarrhea.Methods Concentration degree and circular distribution methods were used to analyze the seasonal distribution of the clustering of fever and diarrhea in Beijing from 2009 to 2015.The information were collected from the Infectious Disease Surveillance Information System of Beijing.Results The M values of the clustering of fever and diarrhea were 0.57 and 0.47.Circular distribution results showed that the clustering of fever and diarrhea angle dispersion index R values were 0.57 and 0.46 respectively,the sample average angle of Rayleigh's test Z values were 414.14,148.09 respectively (all P＜0.01).The clustering of fever and diarrhea had seasonality.The incidence peak of fever was on October 13,and the epidemic period was during August 13-December 14.The incidence peak of diarrhea was on July 31,and the epidemic period was during May 20-October 11.Conclusion The clustering of fever had obvious seasonality in Beijing,which mainly occurred in auttmn and winter.The cluster of diarrhea had certain seasonality,which mainly occurred in summer and autumn.
