Knowledge of influenza vaccination recommendation and early vaccination uptake during the 2015–16 season among adults aged ≥18years – United States

• Published in: Vaccine Vol. 35; no. 34; pp. 4346 - 4354
• Main Authors: Lu, Peng-jun, Srivastav, Anup, Santibanez, Tammy A., Christopher Stringer, M., Bostwick, Michael, Dever, Jill A., Stanley Kurtz, Marshica, Williams, Walter W.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier Ltd 03.08.2017
• Subjects: Adolescent; Adult; Aged; Coverage; Female; Health Knowledge, Attitudes, Practice; Humans; Immunization Programs; Influenza; Influenza vaccine; Influenza Vaccines; Influenza, Human - epidemiology; Influenza, Human - prevention & control; Knowledge of influenza vaccination recommendation; Logistic Models; Male; Middle Aged; National Internet Flu Survey (NIFS); Population Surveillance; Seasons; Socioeconomic Factors; Surveys and Questionnaires; The Advisory Committee on Immunization Practices (ACIP); United States - epidemiology; Vaccination; Vaccination - psychology; Vaccination Coverage; Young Adult; Influenza; Vaccination; Knowledge of influenza vaccination recommendation; Adult; Coverage; National Internet Flu Survey (NIFS); Influenza vaccine; The Advisory Committee on Immunization Practices (ACIP)
• ISSN: 0264-410X; 1873-2518
• DOI: 10.1016/j.vaccine.2017.06.074

•19.6% indicated knowing that influenza vaccination is recommended for persons ≥6months.•62.3% had awareness that there was a recommendation for influenza vaccination, but with incorrect age group.•Overall, 39.9% of adults aged ≥18years reported having an influenza vaccination.•Effective strategies are needed to improve recommendation awareness and vaccination coverage. Since 2010, the Advisory Committee on Immunization Practices (ACIP) has recommended that all persons aged ≥6months receive annual influenza vaccination. We analyzed data from the 2015 National Internet Flu Survey (NIFS), to assess knowledge and awareness of the influenza vaccination recommendation and early influenza vaccination coverage during the 2015–16 season among adults. Predictive marginals from a multivariable logistic regression model were used to identify factors independently associated with adults’ knowledge and awareness of the vaccination recommendation and early vaccine uptake during the 2015–16 influenza season. Among the 3301 respondents aged ≥18years, 19.6% indicated knowing that influenza vaccination is recommended for all persons aged ≥6months. Of respondents, 62.3% indicated awareness that there was a recommendation for influenza vaccination, but did not indicate correct knowledge of the recommended age group. Overall, 39.9% of adults aged ≥18years reported having an influenza vaccination. Age 65years and older, being female, having a college or higher education, not being in work force, having annual household income ≥$75,000, reporting having received an influenza vaccination early in the 2015–16 season, having children aged ≤17years in the household, and having high-risk conditions were independently associated with a higher correct knowledge of the influenza vaccination recommendation. Approximately 1 in 5 had correct knowledge of the recommendation that all persons aged ≥6months should receive an influenza vaccination annually, with some socio-economic groups being even less aware. Clinic based education in combination with strategies known to increase uptake of recommended vaccines, such as patient reminder/recall systems and other healthcare system-based interventions are needed to improve vaccination, which could also improve awareness.