【摘要】 目的 评估浙江省余姚市老年慢性下呼吸道疾病（CLRD）患者在2018/2019—2022/2023流感季的流感疫苗（Influenza vaccine, InfV）接种率及其影响因素。方法 通过浙江省免疫信息管理系统和宁波市区域卫生信息平台获取相关研究数据，计算目标人群的InfV接种率，应用多因素logistic回归模型分析影响InfV接种的因素。结果 余姚市老年CLRD患者的InfV接种率从2018/2019流感季的3.44%上升到2022/2023流感季的41.05%。多因素分析表明，免费流感疫苗接种政策是影响InfV的重要因素（OR=7.37,95%CI:7.10～7.66）。此外，InfV接种率还与新冠疫情流行、合并症类型及数量、既往疫苗接种史等有关（均P<0.05）。结论 2018—2023流感季，余姚市老年CLRD患者的InfV接种率显著提高，但与高收入水平国家仍存在差距。免费流感疫苗接种政策、新冠疫情、合并症类型及数量等是影响InfV接种率的重要因素。建议实施包含政策支持和健康教育等相结合的综合干预策略，以进一步提高该人群的InfV接种率。更多还原

【Abstract】 Objective To evaluate influenza vaccine(InfV) coverage and influencing factors among older adults with chronic lower respiratory diseases(CLRD) from 2018/19 to 2022/23 in Yuyao City of Zhejiang Province.Methods We obtained relevant study data from Zhejiang Immunization Information Management System and Ningbo Regional Health Information Platform, calculated the InfV coverage of target population, and used Logistic regression to analyze the the factors influencing influenza vaccination.Results The InfV coverage among older adults with CLRD increased from 3. 44% during the 2018/19 influenza season to 41. 05% during the 2022/23 influenza season. Multivariate Logistic analysis results indicated that free influenza vaccination policy was a key influencing factor for InfV coverage(OR= 7. 37,95%CI:7. 10 ～ 7. 66). Additionally, the InfV coverage was also associated with the COVID-19 pandemic, the variety and number of comorbidities and vaccination history(allP<0. 05).Conclusions The InfV coverage among elderly CLRD patients increased significantly from 2018/2019 to 2022/2023 influenza seasons, but there is still a gap when compared with that in high-income countries. Free influenza vaccination policy, the COVID-19 pandemic, as well as the variety and number of comorbidities are key factors influencing InfV coverage. It is recommended to implement a comprehensive intervention strategy combining policy support and health education to further improve InfV coverage in this population.更多还原