摘要目的：:调查河北省邢台市农村地区50岁以上人群视网膜静脉阻塞（RVO）患病情况，并对影响因素进行分析。方法：:横断面调查研究。于2021年6月至2022年1月选择河北省邢台市信都区农村地区3个乡镇的11个自然村50岁以上常住居民共5 046例。采集视力、验光、眼压、裂隙灯显微镜检查及眼底照相等检查的结果。通过评阅眼底照片来诊断RVO，计算RVO的患病率，并通过Logistic回归分析探讨RVO发病的危险因素。结果：:共4 047例50岁以上常住居民参加本次调查，应答率为80.2%，其中3 609例（71.5%）采集到质量合格的双眼眼底照片。通过评阅照片，共62例（62眼）被诊断为RVO，RVO的患病率为1.7%，95%置信区间（ CI）：1.3%~2.1%。其中，视网膜中央动脉阻塞4例（4眼），患病率0.1%，95% CI：0~0.2%；半侧性视网膜静脉阻塞（HRVO）2例（2眼），患病率0.1%，95% CI：0~0.1%；视网膜分支静脉阻塞56例（56眼），患病率1.5%，95% CI：1.1%~1.9%。Logistic回归分析显示年龄增长（ OR=1.05，95% CI：1.01~1.07， P=0.005）、女性（ OR=1.84，95% CI：1.06~3.20， P=0.031）、高血压（ OR=2.84，95% CI：1.66~4.85， P<0.001）是RVO患病的危险因素。 结论：:河北省邢台市农村地区50岁以上人群中RVO患病率为1.7%，其中视网膜分支静脉阻塞占RVO患者的大多数，高龄、女性和高血压是RVO的危险因素。

abstractsObjective::Analyse the prevalence and related factors of retinal vein occlusion (RVO) in residents aged 50 and above in rural areas of Xingtai City, Hebei Province.Methods::This was a cross-sectional survey study. Residents of 50 years and older living in 11 natural villages of 3 townships in rural areas of Xindu District, Xingtai City, Hebei Province in all 5 046 cases were recruited. Data such as visual acuity, optometry, intraocular pressure, slit lamp microscopy examination, fundus photography were collected. RVO was diagnosed by reviewing fundus photographs. The prevalence of RVO was calculated and logistic regression analysis was used to explore the risk factors for RVO.Results::A total of 4 047 subjects participated in this survey with a response rate of 80.2%. Among them, 3 609 subjects (71.5%) had fundus photographs of good quality taken from both eyes. Through reviewing the photos, a total of 62 cases (62 eyes) were diagnosed with RVO, and the prevalence of RVO was 1.7%, 95% confidene inderval ( CI): 1.3%-2.1%. Among them, there were 4 cases (4 eyes) of central retinal vein occlusion (CRVO), with a prevalence of 0.1%, 95% CI: 0-0.2%; 2 cases (2 eyes) of hemiretinal vein occlusion (HRVO), with a prevalence of 0.1%, 95% CI: 0-0.1%; and 56 cases (56 eyes) of branch retinal vein occlusion (BRVO), with a prevalence of 1.5%, 95% CI: 1.1%-1.9%. Logistic regression analysis showed that age ( OR=1.05, 95% CI: 1.01-1.07, P=0.005), female ( OR=1.84, 95% CI: 1.06-3.20, P=0.031), and hypertension ( OR=2.84, 95% CI: 1.66-4.85, P<0.001) were risk factors for RVO. Conclusions::The prevalence of RVO in residents aged 50 and above in rural areas of Xindu District, Xingtai City, Hebei Province is 1.7%, among which BRVO accounts for the majority of patients with RVO. Older age, female and hypertension are risk factors for RVO.