Impact of a vaccination promotion intervention using motivational interview techniques on long-term vaccine coverage: the PromoVac strategy

Abstract

Background: Delayed vaccinations at 2, 4, and 6 months are associated with a higher probability of delayed age-appropriate vaccination during childhood. This study aimed to assess the effectiveness of an information session on immunization during infancy. Methods: An individual educational information session with motivational interview techniques for immunization of infants was conducted (experimental group) or not conducted (control group) during postpartum stay in a quasi-experimental cohort study. Immunization data were collected from the Eastern Townships Public Health registry at 3, 5, 7, 13, 19, and 24 months of age. Logistic regressions with repeated measures were performed to assess the intervention's impact. Relative risks (RR) were estimated. A multivariate model was obtained adjusted for confounding factors. Results: The experimental and control groups included 1140 and 1249 families, respectively. In per protocol analysis, a significant increase in VC of 3.2, 4.9, 7.3, 6.7, 10.6, and 5.1% was observed at 3, 5, 7, 13, 19, and 24 months. Children from experimental group had 9% more chance at a complete vaccination status between 3 and 24 months compared to children from control group (RR (95% CI): 1.09 (1.05-1.13), p < .001). Children with complete vaccination status at 3 months were more likely to have a complete vaccination status at 24 months (82.3 vs. 48.1%, RR (95% CI): 2.72 (2.28-3.24), p < .001). After adjustment, the estimated RR of the intervention's impact was 1.05 (1.02-1.07), p < .001. Conclusions: An educational information session about immunization based on motivational interview techniques conducted during postpartum hospitalization could improve immunization during infancy.

Seasonal influenza vaccination among people with diabetes: influence of patients’ characteristics and healthcare use on behavioral changes

“…While several trials have assessed the effectiveness of interventions to increase SIV rates (especially among older people), further research is needed to determine how best to target these interventions to specific populations, depending on patient characteristics. 37 Further research is also needed to assess the effectiveness of interventions on SIV vaccination that have showed promising results for other vaccines and population groups (e.g., motivational interviewing and webbased tailored educational tools 25,38,39 ).…”

L’entrevue motivationnelle : un outil particulièrement efficace pour atténuer la réticence à la vaccination

“…La technique d'entrevue motivationnelle (EM) est l'une des rares stratégies ayant contribué à améliorer la couverture vaccinale des nourrissons et à réduire la réticence à la vaccination des parents (5)(6)(7)(8)(9)(10). L'EM est une méthode de communication centrée sur la personne dont le but est de renforcer sa motivation à changer de comportement en pointant son ambivalence intrinsèque et en la dépassant (11).…”

“…Les données étayant l'efficacité de l'EM sur la réticence à la vaccination sont convaincantes. Gagneur et d'autres chercheurs ont mis au point une intervention de sensibilisation fondée sur la technique d'EM à l'intention des parents séjournant à la maternité après l'accouchement (stratégie PromoVac) (5)(6)(7)(8).…”

“…Une étude pilote régionale a montré que cette stratégie s'était traduite par une augmentation de 15 % de l'intention de vaccination des mères, une hausse de 7 % de la couverture vaccinale des nourrissons à sept mois, et par une probabilité accrue de 9 % que les enfants présentent un statut vaccinal complet à l'âge de deux ans si leurs parents recevaient l'intervention à la maternité (6)(7)(8). Un essai clinique randomisé mené à l'échelle provinciale a montré que les taux de réticence à la vaccination avaient chuté de 40 % (5,6).…”

“…Le recours à l'EM lors d'une séance d'information contribue à tisser une relation orientée sur le parent ou l'aidant et, fait important, à accueillir les parents à leur niveau individuel de connaissances et dans le respect de leurs convictions (5)(6)(7)(8). Le recours à la technique d'EM prend la forme d'une conversation respectueuse et empathique autour de la vaccination et contribue à tisser une relation solide entre le parent ou l'aidant et le professionnel de la santé (9).…”