Vaccination contre les papillomavirus humains : intentions vaccinales et connaissances de parents d’élèves bas-normands avant intervention au cours de l’année scolaire 2015–2016

Abstract

BackgroundThe vaccine against human papillomavirus (HPV) can be administered starting at the age of 9 years. Parents thus play a major role in the choice of vaccination. The objective of this study was to investigate parental awareness about anti-HPV vaccination in Lower Normandy and to measure their vaccinal intentions before an informative campaign. MethodsThe study population included parents of children aged 10–11 years enrolled in school (2015–2016) in Lower Normandy, France. The initial study was observational and descriptive. With the agreement of the academic directors, 16 middle schools were selected. A questionnaire was delivered to the school children and collected in September 2015 by the school nurses. ResultsWithin the selected middle schools, 1427 questionnaires were delivered. School nurses collected 1168 questionnaires (81.9%) among which 1155 could be analyzed because they contained answers (80.9%). Out of 575 girls aged 10–11 years, 523 (91.0%) were not vaccinated against HPV. Among parents of non-vaccinated schoolgirls who answered, 48.4% did not know if they intended to have their children vaccinated (251 of 519 questionnaires). There was a significant association between the socio-professional status of the parents who answered and their intention to vaccinate their daughters against HPV (P=0.03). Parents were significantly more likely to immunize their children when they previously knew about the vaccine (P<0.001) and when they had good knowledge about the vaccine (P<0.05). Parents who previously had their daughters vaccinated were also significantly more likely to have their sons vaccinated against HPV (P<0.001). ConclusionThe significant association between knowledge about the vaccine and intentions to have their children vaccinated allows us to predict the effectiveness of information campaigns on vaccination rates.