Time-space study on influenza-like illness in Shenzhen, 2013-2015
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摘要: 目的 分析2013-2015年深圳市流感流行特点和空间分布特征，为往后深圳市流感的预防和控制工作提供决策依据。方法 收集深圳市2013-2015年哨点医院（学校）上报的流感样病例（influenza-like illness，ILI）监测资料，采用回顾性时空聚集性分析方法探讨流感时空分布特征。结果 2013-2015年深圳市0~14岁年龄组ILI数占比较高，构成比为73.20%；流感全年有两个高峰，出现在3~7月和12月~次年2月；运用时空聚集性分析可探测出深圳市ILI发病聚集情况，聚集时间与描述性分析的ILI发病变化趋势基本吻合。结论 深圳的流感活动在夏季和冬季表现活跃，0~岁年龄组是ILI主要人群。利用ILI资料进行时空聚集性分析能够及时探测疾病异常聚集，对流感的防控工作具有重要意义。Abstract: Objective To analyze the epidemic and spatial characteristics of influenza in Shenzhen during 2013-2015,and to provide decision-making evidence for the prevention and control of influenza in Shenzhen. Methods Influenza-like illness(ILI)data were collected from sentinel hospital or school in Shenzhen during 2013-2015. Spatial-temporal scan statistic were utilized to analyze the temporal and spatial distribution characteristics of influenza. Results Age 0-14 year group was the main part of ILI patients from 2013 to 2015(accounting for 73.20%).There are two peaks for ILI% in each year,one from March to July,the other from December to February.The incidence of ILI could be detected by temporal-spatial scanning statistics, which the aggregating time was consistent with the descriptive analysis of ILI. Conclusions ILI circulating peak mainly focuses in summer and winter, and 0-year group is the main part of ILI patients.Using spatial-temporal scan statistic can detect the abnormal cluster of ILI in time,which will be great significance to the prevention and control of influenza.
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Key words:
- Influenza,human /
- Epidemiological study /
- Time-space clustering analysis
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