Why do parents not re-vaccinate their child for influenza? A prospective cohort study

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Child influenza vaccination rates for the UK are published annually, however there are no publicly available data on how many children are re-vaccinated the following year. This prospective cohort study aimed to identify factors associated with not re-vaccinating one’s child. Participants (n=270) completed a questionnaire before their child was vaccinated for influenza in the 2016/17 season, and follow-up questionnaires three days and one month after their child’s vaccination. Re-vaccination data were collected at the end of the 2017/18 influenza season (n=232, response rate 85.9%). Forty-one children (17.7%) were not re-vaccinated for influenza in 2017/18. Parental report of severe side-effects three days after vaccination (p=.04) and worry about side-effects one month after vaccination (p=.05) were associated with not re-vaccinating. However, the restricted sample size reduced the statistical power of these analyses. Decreasing parental worry about side-effects may help improve re-vaccination rates.
Clinical trial registration: The study was registered on ClinicalTrials.gov (NCT02909855).
Original languageEnglish
Publication statusAccepted/In press - 12 Apr 2020


  • Side effects
  • Child vaccination
  • Psychological factors


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