a Department of Health Economics , RTI Health Solutions , Research Triangle Park, NC , USA.
b Department of Biostatistics , RTI Health Solutions , Research Triangle Park, NC , USA.
Hum Vaccin Immunother. 2018 Feb 1;14(2):430-441. doi: 10.1080/21645515.2017.1403697. Epub 2017 Dec 15.
Despite longstanding recommendations for routine vaccination against influenza; pneumococcal; tetanus, diphtheria, acellular pertussis (Tdap); and herpes zoster (HZ) among the United States general adult population, vaccine uptake remains low. Understanding factors that influence adult vaccination and coverage variability beyond the national level are important steps toward developing targeted strategies for increasing vaccination coverage. A retrospective analysis was conducted using data from the Behavioral Risk Factor Surveillance System (2011-2014). Multivariable logistic regression modeling was employed to identify individual factors associated with vaccination (socio-demographics, health status, healthcare utilization, state of residence) and generate adjusted vaccination coverage and compliance estimates nationally and by state. Results indicated that multiple characteristics were consistently associated with a higher likelihood of vaccination across all four vaccines, including female sex, increased educational attainment, and annual household income. Model-adjusted vaccination coverage estimates varied widely by state, with inter-state variability for the most recent year of data as follows: influenza (aged ≥18 years) 30.2-49.5%; pneumococcal (aged ≥65 years) 64.0-74.7%; Tdap (aged ≥18 years) 18.7-46.6%; and HZ (aged ≥60 years) 21.3-42.9%. Model-adjusted compliance with age-appropriate recommendations across vaccines was low and also varied by state: influenza+Tdap (aged 18-59 years) 7.9-24.7%; influenza+Tdap+HZ (aged 60-64 years) 4.1-14.4%; and influenza+Tdap+HZ+pneumococcal (aged ≥65 years) 3.0-18.3%. In summary, after adjusting for individual characteristics associated with vaccination, substantial heterogeneity across states remained, suggesting that other local factors (e.g. state policies) may be impacting adult vaccines uptake. Further research is needed to understand such factors, focusing on differences between states with high versus low vaccination coverage.
尽管美国普通成年人群中一直建议常规接种流感疫苗、肺炎球菌疫苗、破伤风、白喉和无细胞百日咳(Tdap)疫苗和带状疱疹(HZ)疫苗,但疫苗接种率仍然很低。了解国家层面以外影响成人疫苗接种和覆盖率差异的因素是制定增加疫苗接种覆盖率的针对性策略的重要步骤。本研究采用行为风险因素监测系统(2011-2014 年)的数据进行回顾性分析。采用多变量逻辑回归模型确定与疫苗接种相关的个体因素(社会人口统计学、健康状况、医疗保健利用、居住州),并生成全国和各州的调整后疫苗接种率和合规性估计。结果表明,在所有四种疫苗中,多种特征与更高的接种可能性相关,包括女性、教育程度提高和家庭年收入。模型调整后的疫苗接种率估计在各州之间差异很大,最近一年的数据如下:流感(≥18 岁)为 30.2-49.5%;肺炎球菌(≥65 岁)为 64.0-74.7%;Tdap(≥18 岁)为 18.7-46.6%;HZ(≥60 岁)为 21.3-42.9%。疫苗接种的年龄适宜性建议的遵守率较低,各州之间也存在差异:流感+Tdap(18-59 岁)为 7.9-24.7%;流感+Tdap+HZ(60-64 岁)为 4.1-14.4%;流感+Tdap+HZ+肺炎球菌(≥65 岁)为 3.0-18.3%。总之,在调整与疫苗接种相关的个体特征后,各州之间仍存在显著差异,这表明其他地方因素(例如州政策)可能影响成人疫苗接种。需要进一步研究以了解这些因素,重点关注疫苗接种率高与低的各州之间的差异。