Analysis of the temporal and spatial distribution characteristics of hand-foot-and-mouth disease in Zhongshan City from 2013 to 2018
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摘要:
目的 分析2013―2018年中山市手足口病(hand-foot-and-mouth disease, HFMD)发病的时空聚集性,为防控工作提供理论依据。 方法 收集中山市2013―2018年HFMD流行病学数据,结合空间自相关分析与时空扫描实现时空聚集分析,并对分析结果进行可视化处理。 结果 2013―2018年中山市共报告HFMD病例97 214例,年均发病率为493.40/10万。发病人群主要为5岁及以下儿童,占发病总数的95.38%,时间上呈现双峰分布。空间自相关分析结果显示,2015―2016年HFMD发病存在空间正相关。逐年时空扫描结果显示,2013―2018年之间均存在高风险聚集区域,主要是位于中心城区西侧的市郊边缘乡镇,聚集时段与发病曲线变化趋势基本一致。 结论 2013―2018年中山市HFMD发病存在一定的时空聚集性,在春夏、夏秋交替之际聚集程度更高,今后的防控工作应有所侧重。 Abstract:Objective To analyze the temporal-spatial clustering of hand-foot-and-mouth disease (HFMD) in Zhongshan City from 2013 to 2018, so as to provide a theoretical basis for prevention and control of HFMD. Methods The epidemic data of HFMD in Zhongshan City from 2013 to 2018 was collected. Combining spatial autocorrelation analysis and spatial-temporal scanning to realize spatial-temporal analysis, and visualize the analysis results. Results A total of 97 214 cases of HFMD were reported in Zhongshan City from 2013 to 2018, with an average annual incidence of 493.40/100 000. Children aged 0-5 years old accounted for 95.38% of the total cases. The distribution over time was obviously bimodal. Spatial autocorrelation analysis results showed that there was an obvious positive spatial correlation in HFMD incidence from 2015 to 2016. High risk clusterings were detect by year-by-year time-space scanning from 2013 to 2018, mainly in the suburban border towns on the west side of the central city. The high-incidence aggregation period was basically consistent with the trend of the incidence curve. Conclusions A certain characteristic of spatiotemporal clustering is shown in the HFMD incidence in Zhongshan City from 2013 to 2018. The clustering degree is higher at the turn of spring and summer, summer and autumn. And future prevention and control work should be strengthen at that time.. -
表 1 2013―2018年中山市HFMD逐年时空扫描结果
Table 1. Result of spatial-temporal scanning analysis of HFMD in Zhongshan City from 2013 to 2018
项目 覆盖乡镇数[半径(km)] 聚集时间(月/日―月/日) 实际发病数(例) 期望发病数(例) LLR值 RR值 P值 2013年 Ⅰ类 5(10.99) 6/1―9/30 2 614 893 1 195.65 3.34 < 0.001 Ⅱ类 4(13.38) 5/1―9/30 2 678 1 056 968.98 2.87 < 0.001 2014年 Ⅰ类 2(11.77) 4/1―7/31 2 056 721 877.35 3.12 < 0.001 Ⅱ类 5(10.99) 4/1―6/30 2 026 727 833.02 3.04 < 0.001 2015年 Ⅰ类 5(24.32) 5/1―9/30 3 026 1 243 1 018.13 2.76 < 0.001 Ⅱ类 3(8.47) 5/1―9/30 2 109 1 286 242.68 1.73 < 0.001 2016年 Ⅰ类 4(10.78) 4/1―6/30 3 467 681 3 072.75 5.98 < 0.001 Ⅱ类 4(13.38) 4/1―6/30 2 612 808 1 351.32 3.58 < 0.001 2017年 Ⅰ类 2(11.77) 5/1―10/31 2 934 1 149 1 066.65 2.87 < 0.001 Ⅱ类 5(10.99) 5/1―10/31 3 370 1 571 879.04 2.42 < 0.001 Ⅱ-1类 4(8.97) 5/1―6/30 812 413 154.08 2.01 < 0.001 2018年 Ⅰ类 5(10.99) 5/1―10/31 2 919 1 193 1 016.77 2.86 < 0.001 Ⅱ类 4(8.47) 5/1―10/31 1 714 953 268.89 1.92 < 0.001 -
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