Key result
Nearly half of parents (44.6%) were unwilling to vaccinate their children with the EV71 vaccine, though parents with good knowledge of HFMD were significantly more likely to accept vaccination (OR 1.67).
Why the study?
Enterovirus 71 vaccine is a promising measure against severe hand, foot and mouth disease, but parental knowledge and acceptability needed investigation.
Cross-Sectional (n=992)
Yes
Odds Ratio: 1.67 (95% CI 1.27–2.2)
p-value: p=<0.001
Nearly half of parents in Chongqing were unwilling to vaccinate their children with the EV71 vaccine, highlighting the need for targeted health education to improve vaccine acceptance.
Low HFMD knowledge and 45% EV71 vaccine unwillingness among parents signal need for education; leaves open effective uptake strategies in similar populations.
BACKGROUND: Enterovirus 71 (EV71) vaccine, which was put into market in China in 2016, has been viewed as a promising prevention measure against severe and fatal hand, foot and mouth disease (HFMD). This study aimed to investigate the knowledge of HFMD and acceptability of EV71 vaccine among parents of under-five in Chongqing, China. METHODOLOGY /PRINCIPAL FINDINGS: A cross-sectional survey was conducted in 2017. A validated questionnaire consisting of three sections including demographic information, knowledge of HFMD, acceptability and reasons for declining vaccination was developed based on literature review. Factors associated with unwillingness to receive EV71 vaccine were explored using multivariate logistic regression. A total of 992 parents finished the questionnaire with a response rate of 91.9%. Awareness of HFMD and EV71 vaccine were reported by 823 (83.0%) parents and 386 (38.9%) parents respectively. Knowledge about HFMD was with a mean score of 5.0 (standard deviation = 3.5) out of a total score of 12. Only 369 (37.2%) participants were classified as with good knowledge level about HFMD. 279 (28.1%) participants had their children received EV71 vaccine and 271 (27.3%) expressed willingness to vaccinate their children after a short-time education about EV71 vaccine. Acceptability of EV71 vaccine increased along with parents' education level (p = 0.008) and HFMD knowledge level (p<0.001). Parents of scattered children had higher acceptability than those of preschool children (p = 0.002). 442 (44.6%) of participants were unwilling to have their children vaccinated with EV71 vaccine. The most common reasons for declining EV71 vaccine were doubts about its safety (56.6%) and efficacy (48.3%), and the necessity of vaccination (38.3%). Physicians and vaccination certificate were the parents' most trusted sources of vaccine information. CONCLUSIONS: Parents' knowledge about HFMD was not sufficient, and nearly half of the parents expressed unwillingness to vaccinate their children with EV71 vaccine. Our findings stress that more efforts by health authorities in Chongqing are needed to increase the acceptability of EV71 vaccine, especially among parents of preschool children with lower education level.
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Li et al. (2019) conducted a cross-sectional in Hand, foot and mouth disease (HFMD) (n=992). Good knowledge of HFMD vs. Poor knowledge of HFMD was evaluated on Acceptability of EV71 vaccine (OR 1.67, 95% CI 1.27-2.20, p=<0.001). Nearly half of parents (44.6%) were unwilling to vaccinate their children with the EV71 vaccine, though parents with good knowledge of HFMD were significantly more likely to accept vaccination (OR 1.67).
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