Temporal-spatial clustering analysis of pulmonary tuberculosis in Beijing from 2015 to 2019
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摘要:
目的 探讨2015-2019年北京市肺结核发病时空分布特征,掌握高发重点区域,为预防控制肺结核提供理论依据。 方法 分析2015-2019年北京市报告的肺结核病例流行病学特征,利用回顾性时空重排扫描,探索病例的时空分布特征。 结果 2015-2019年期间北京市共报告了34 271例肺结核,年均报告发病率为31.67/10万。每年3-9月为高发期,11-12月又出现一个小的高峰后迅速下降,至次年2月达到最低水平。报告发病率最高的地区为门头沟区,其次为通州区。时空扫描分析探测到了时空聚集区域,扫描半径为5 km时候最易发生聚集的区域均为朝阳区(RR值分别为5.96、5.86、5.88、6.12和7.17,均有P<0.001)。随着扫描半径的增加,聚集性区域往西南方向发展,扩展至东城区、西城区、丰台区和石景山区。 结论 北京市肺结核有明显的时空簇,高发地区为朝阳区、西城区、东城区、丰台区和石景山区,有向临区扩散的趋势。应加强重点地区的监测,开展有针对性的防控措施。 Abstract:Objective To understand the spatial and temporal distributions and the clustering areas of pulmonary tuberculosis in Beijing from 2015 to 2019, and to provide evidence for the disease prevention and control. Methods Descriptive epidemiologic methods were used to analyze pulmonary tuberculosis data in Beijing from 2015 to 2019 from the Chinese Disease Surveillance Information Reporting System. Time-space rescheduling scanning analysis was used to explore the spatio-temporal distribution characteristics. Results In total, 34 271 cases of pulmonary tuberculosis were reported in Beijing from 2015 to 2019, the annual incidence was 31.67 per 100 000. The high incidence period was from March to September every year, then decreased rapidly after a small peak in November and December, and reached the lowest level in February of the following year. The area with the highest reported incidence was Mentougou District, followed by Tongzhou District. The spatio-temporal scanning analysis detected the spatio-temporal aggregation area, when the scanning radius was 5km, the most likely clusters were detected all in Chaoyang district (RR=5.96, 5.86, 5.88, 6.12, 7.17, respectively. all P < 0.001). With the increase of scaning radius, Spatio-temporal clusters of pulmonary tuberculosis tended to move to the south west: Dongcheng, Xicheng, Fengtai and Shijingshan. Conclusions There were obvious spatiotemporal clusters of pulmonary tuberculosis in Beijing from 2015 to 2019. The high incidence areas were Chaoyang, Xicheng, Dongcheng, Fengtai and Shijingshan, and there was a trend of diffution in neighboring areas of the most likely gathering districts. Monitoring in key areas should be strengthened, and targeted prevention and control measures should be carried out. -
表 1 2015-2019年北京市报告肺结核的流行病学特征
Table 1. Epidemiological features of pulmonary tuberculosis in Beijing from 2015 to 2019
特征 肺结核病例数(n=34 271) 构成比(%) 年龄(岁) 0~<10 79 0.23 10~<20 1 360 3.97 20~<30 9 422 27.49 30~<40 5 487 16.01 40~<50 3 644 10.63 50~<60 4 547 13.27 60~<70 3 924 11.45 ≥70 5 808 16.95 性别 男 22 307 65.09 女 11 964 34.91 表 2 2015-2019年北京市肺结核时空扫描聚集情况
Table 2. The clusters of pulmonary tuberculosis in Beijing from 2015 to 2019 by spatial-temporal scan
年份 空间扫描半径(km) 最有可能聚集区域 实际病例数 理论病例数 LLR值 RR值 P值 2015 5 朝阳区 1 346 266.40 1 187.17 5.96 <0.001 10 朝阳区、西城区、东城区 2 059 430.79 1 800.43 6.24 <0.001 15 朝阳区、西城区、东城区、丰台区和石景山区 3 023 636.94 2 804.79 7.34 <0.001 20 朝阳区、西城区、东城区、丰台区和石景山区 3 023 636.94 2 804.79 7.34 <0.001 2016 5 朝阳区 1 305 262.31 1 133.93 5.86 <0.001 10 朝阳区、西城区、东城区 1 893 408.42 1 594.65 5.94 <0.001 15 朝阳区、西城区、东城区、丰台区和石景山区 2 801 605.80 2 509.38 6.94 <0.001 20 朝阳区、西城区、东城区、丰台区和石景山区 2 801 605.80 2 509.38 6.94 <0.001 2017 5 朝阳区 1 380 276.49 1 202.85 5.88 <0.001 10 东城区、西城区、朝阳区 1 964 430.50 1 624.82 5.81 <0.001 15 朝阳区、西城区、东城区、丰台区和石景山区 2 827 638.55 2 405.12 6.46 <0.001 20 朝阳区、西城区、东城区、丰台区和石景山区 2 827 638.55 2 405.12 6.46 <0.001 2018 5 朝阳区 1 272 244.63 1 150.73 6.12 <0.001 10 东城区、西城区、朝阳区 1 863 380.13 1 655.28 6.29 <0.001 15 朝阳区、西城区、东城区、丰台区和石景山区 2 673 563.19 2 437.09 7.01 <0.001 20 朝阳区、西城区、东城区、丰台区和石景山区 2 673 563.19 2 437.09 7.01 <0.001 2019 5 朝阳区 1 487 250.18 1 525.92 7.17 <0.001 10 东城区、西城区、朝阳区 2 093 389.05 2 041.31 7.08 <0.001 15 朝阳区、西城区、东城区、丰台区和石景山区 2 981 576.08 2 973.54 7.94 <0.001 20 朝阳区、西城区、东城区、丰台区和石景山区 2 981 576.08 2 973.54 7.94 <0.001 -
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