2004 - 2018年无锡市老年艾滋病病毒感染者和艾滋病病人流行病学特征分析

目的 分析无锡市2004 - 2018年老年HIV/AIDS病例的流行特征，为制定老年人群的艾滋病防控策略提供参考依据。方法 收集无锡市2004 - 2018年老年HIV/AIDS病例报告资料，进行流行病学分析。结果 2004 - 2018年无锡市累计报告老年HIV/AIDS病例843例，占总报告病例数的25.1%，确证时平均年龄（57.6±7.5）岁，男女比例4.5∶1，已婚有配偶占52.1%，初中及以下占78.3%，经性传播占98.8%；经医疗机构检测发现占69.3%。男性病例中同性传播占比从2004年的0.0%上升至2018年的55.7%（χ2趋势 = 18.168，P＜0.001）。经异性性传播的病例中，98.4%的男性病例有非婚异性性接触史，高于女性病例的42.1%（χ2 = 229.381，P＜0.001）；59.2%的女性病例配偶/固定性伴阳性，高于男性病例的3.0%（χ2 = 216.699，P＜0.001）。结论 无锡市老年HIV/AIDS病例主要经性传播途径感染，同性性传播比例上升趋势明显，应根据该人群艾滋病流行特点采取针对性防控措施，以控制疫情的进一步蔓延。

Epidemiological characteristics of elderly HIV/AIDS patients in Wuxi 2004-2018

To analysis the epidemiological characteristics of HIV/AIDS cases aged 50 years old and above in WuxiCity from 2004 to 2018，so as to provide the scientific basis for AIDS prevention and control measures of the elderlypopulation． Methods Epidemic situation reports of people aged above 50 years old with HIV/AIDS in Wuxi from 2004 to2018 were collected and the epidemiological characteristics were analyzed. Results A total of 843 cases over 50 years oldwere reported in Wuxi from 2004 to 2018，accounting for 25.1% of the total reported cases. The average age was (57.6±7.5)years old and the ratio of male and female was 4.5:1. Among the 843 HIV/AIDS patients，majority cases were married，accounting for 52.1%; patients with junior high school and below accounted for 78.3%; sexual transmission held 98.8%. Atotal of 69.3% of the positive samples was from medical institutions. The proportion of the elderly male cases with homosexualtransmission increased from 0.0% in 2004 to 55.7% in 2018 (χ2=18.168, P<0.001). Among the heterosexually transmittedcases, 98.4% (361/367) of male cases and 42.1% (64/152) of female cases had the histories of extramarital sexual intercourse,and the difference was statistically significant (χ2=229.381, P<0.001); 3.0%(11/367) of male cases and 59.2%(90/152) offemale cases have a spouse/fixed partner who is HIV positive, and the difference was statistically significant (χ2=216.699, P<0.001). Conclusion The elderly HIV / AIDS cases in Wuxi are mainly infected through sexually transmitted routes, and theproportion of homosexually transmitted routes is increasing. Therefore, targeted prevention and control measures should betaken according to the epidemic characteristics of the population to control the further spread of disease.