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目的分析2012-2016年北京市细菌性痢疾发病的季节性规律,为有针对性地防控细菌性痢疾提供依据。方法收集《中国传染病监测报告信息系统》中2012-2016年北京市细菌性痢疾的月发病数,采用圆形分布法进行季节性分布分析,确定每年高峰日和高峰期,并采用Watson-William检验法比较各年高峰日是否相同。结果 2012-2016年北京市细菌性痢疾发病存在季节性(M=0.49),且流行趋势基本相同。高峰集中在夏秋季,每年均存在高峰日和高峰期(P<0.05),但各年的高峰日不全相同(F=124.95,P<0.05)。结论北京市细菌性痢疾发病存在季节性,每年的5月至10月为该病的流行高峰,应在此时间段采取有效的预防措施,降低发病率,减少疾病负担。
Objective To analyze the seasonal patterns of bacterial dysentery incidence in Beijing from 2012 to 2016 and provide evidence for targeted prevention and control of bacterial dysentery. Methods The monthly incidence of bacillary dysentery in Beijing from 2012 to 2016 was collected from the Information System of Infectious Disease Surveillance Reports in China. Seasonal distribution analysis was conducted by circular distribution method to determine the annual peak and peak. Watson-William Test method to compare the peak day is the same. Results The incidence of bacterial dysentery in Beijing during 2012-2016 was seasonal (M = 0.49), and the epidemic trend was basically the same. Peaks are concentrated in summer and autumn with peak and peak periods occurring each year (P <0.05), but the peak days are not all the same (F = 124.95, P <0.05). Conclusion The incidence of bacterial dysentery in Beijing is seasonal. From May to October every year, it is the epidemic peak of the disease. Effective precautions should be taken during this period to reduce the incidence and reduce the burden of disease.