2006-2021年嘉兴市男男性行为HIV感染者的空间聚集性分析

Spatial clustering analysis on HIV infected men who have sex with men in Jiaxing city, 2006-2021

目的 分析嘉兴市经男男性行为传播的HIV感染者(简称MSM HIV感染者)的空间分布特征,探索艾滋病流行重点区域,为制定针对性的防控措施提供理论依据。方法 收集中国疾病预防控制信息系统中2006-2021年报告的嘉兴市MSM HIV感染者信息,采用ArcGIS10.7软件进行三维趋势和空间自相关分析。结果 2006-2021年嘉兴市共报告MSM HIV感染者972例,占当地男性常住人口的比例从2006年的0.1/10万上升至2021年的3.9/10万,呈逐年上升趋势(χ趋势2=265.973,P<0.001)。三维趋势分析显示,2006-2021年嘉兴市MSM HIV感染者分布由北向南呈先小幅下降再上升趋势,从西往东方向呈两侧高中间低的“U”型分布。空间自相关分析显示,2006-2021年嘉兴市报告的MSM HIV感染者存在空间正相关(Moran I=0.24,Z=3.189,P<0.01),其中热点聚集区Ⅰ位于南湖区的建设、城南街道,桐乡市的濮院镇、梧桐街道,热点聚集区Ⅱ包括南湖区的嘉北、新嘉、新兴、解放、长水街道,秀洲区的新城街道、洪合镇。结论 嘉兴市MSM HIV感染者存在空间聚集性,需加强重点区域的监测,开展有针对性的防控措施。

Objective To analyze the spatial distribution characteristics of HIV-infected individuals infected through men who have sex with men(HIV-infected MSM) in Jiaxing, to explore the key epidemic areas of AIDS, and to provide the theoretical basis for formulating targeted prevention and control measures. Methods The information on HIVinfected MSM in Jiaxing who were reported in the Chinese Disease Control and Prevention Information System from 2006to 2021 was collected. The three-dimensional trend and spatial autocorrelation analysis were conducted using ArcGIS10.7software. Results A total of 972 HIV-infected MSM were reported in Jiaxing from 2006 to 2021. The proportion of MSM infected with HIV in the local male population increased from 0.1/100000 in 2006 to 3.9/100000 in 2021, showing a rising trend year by year(χtrend~2=265.973, P<0.001). The three-dimensional trend analysis showed that the distribution of MSM infected with HIV in Jiaxing City from 2006 to 2021 slightly declined first and then increased from the North to the South, and was a "U" shape from the West to the East. The spatial autocorrelation analysis showed that there was a positive spatial correlation among reported MSM infected with HIV in Jiaxing City from 2006 to 2021(Moran I=0.24, Z=3.189, P<0.01). Among them, hot spot cluster I was located in Jianshe and Chengnan streets of Nanhu District, Puyuan Town, and Wutong Street of Tongxiang City. The hot spot cluster II were Jiabei, Xinjia, Xinxing, Jiefang, and Changshui streets of Nanhu District, Xincheng streets, and Honghe Town of Xiuzhou District. Conclusions The MSM infected with HIV in Jiaxing has spatial aggregation. It is necessary to strengthen the monitoring in key areas and carry out targeted prevention and control measures.