Institute of Social & Preventive Medicine, University of Bern, Bern, Switzerland.
Population Health Sciences, Bristol Medical School, University of Bristol, BristolUK.
BMJ Open. 2021 Feb 9;11(2):e041354. doi: 10.1136/bmjopen-2020-041354.
We studied time trends in seasonal influenza vaccination and associations with socioeconomic and health-related determinants in Switzerland, overall and in people aged ≥65 years.
Three cross-sectional surveys.
Individuals who participated in the Swiss Health Surveys 2007, 2012 and 2017. We calculated the proportion reporting influenza vaccination in the last 12 months, and performed multivariable logistic regression analyses.
We included 51 582 individuals in this analysis. The median age was 49 years (IQR 25-64), and 27 518 were women (53.3%). The proportion of reporting a history of influenza vaccination overall was 31.9% (95% CI 31.4 to 32.4); and dropped from 34.5% in 2007 to 28.8% in 2017. The uptake of vaccination within the past 12 months was 16% in 2007 and similar in 2012 and 2017 (around 14%). In people with chronic disease, uptake dropped from 43.8% in 2007 to 37.1% in 2012 and to 31.6% in 2017 (p<0.001). In people aged ≥65 years, uptake dropped from 47.8% in 2007 to 38.5% in 2012 to 36.2% in 2017 (p<0.001). In logistic regression, self-reported vaccination coverage decreased in the 65-75 years old (adjusted OR (aOR) 0.56, 95% CI 0.48 to 0.66 between 2007 and 2012; aOR 0.89, 95% CI 0.77 to 1.03 between 2012 and 2017). Uptake was positively associated with the ≥65 age group, living in French-speaking and urban areas, history of smoking, bad self-reported health status, private/semiprivate health insurance, having a medical profession and having any underlying chronic disease.
Influenza vaccination coverage was low in older and chronically ill persons. Significant efforts are required in preparing for the influenza season 2020/2021 to reduce the double burden of COVID-19 and seasonal influenza. These efforts should include campaigns but also novel approaches using social media.
我们研究了瑞士季节性流感疫苗接种的时间趋势及其与社会经济和健康相关决定因素的相关性，包括所有人群和≥65 岁人群。
三次横断面调查。
参与了 2007 年、2012 年和 2017 年瑞士健康调查的个人。我们计算了过去 12 个月内报告流感疫苗接种的比例，并进行了多变量逻辑回归分析。
本分析共纳入 51582 人。中位年龄为 49 岁（IQR 25-64），27518 人为女性（53.3%）。总体报告流感疫苗接种史的比例为 31.9%（95%CI 31.4-32.4）；并从 2007 年的 34.5%下降到 2017 年的 28.8%。过去 12 个月内的疫苗接种率在 2007 年为 16%，2012 年和 2017 年相似（约为 14%）。在患有慢性病的人群中，疫苗接种率从 2007 年的 43.8%下降到 2012 年的 37.1%，再到 2017 年的 31.6%（p<0.001）。在≥65 岁的人群中，疫苗接种率从 2007 年的 47.8%下降到 2012 年的 38.5%，再到 2017 年的 36.2%（p<0.001）。在逻辑回归中，自我报告的疫苗接种覆盖率在 65-75 岁年龄组中下降（2007 年至 2012 年调整后的比值比（aOR）为 0.56，95%CI 0.48-0.66；2012 年至 2017 年调整后的比值比（aOR）为 0.89，95%CI 0.77-1.03）。接种率与≥65 岁年龄组、居住在法语区和城市地区、吸烟史、自我报告健康状况差、私人/半私人医疗保险、有医疗职业以及有任何潜在慢性疾病呈正相关。
老年人和慢性病患者的流感疫苗接种率较低。在为 2020/2021 年流感季节做准备时，需要做出巨大努力，以减少 COVID-19 和季节性流感的双重负担。这些努力应包括宣传活动，但也应使用社交媒体等新方法。
