1. Objectifs

Intentions :
Cette thèse par articles évalue «l’impact de l’ajout de nouveaux vaccins, des retards vaccinaux et des méthodes de collecte de l’information vaccinale sur l’estimation de la couverture vaccinale.» (p. iii) Le premier article «présente l’évolution des couvertures vaccinales dans le temps dans le contexte de tous les changements au calendrier. L’identification des facteurs associés à un statut vaccinal incomplet permet de mieux décrire les populations les plus vulnérables qui peuvent particulièrement bénéficier des interventions en vaccination. […] Pour le deuxième article, considérant la pertinence d’utiliser les retards vaccinaux comme un indicateur pour mesurer la pénétration des programmes de vaccination en complémentarité avec la couverture vaccinale, [l’auteure a] choisi de documenter la prévalence des retards vaccinaux chez les enfants du Québec.» (p. 14)

2. Méthode

Échantillon/Matériau :
In the first article, the author uses «the data from six cross-sectional vaccine coverage surveys conducted every two years which included a total of 3515 children aged 2 years old and randomly selected from the Quebec public health insurance database.» (p. 41) In the second article, she uses «the data from six cross-sectional coverage surveys conducted in the Province of Quebec from 2006 to 2016 which included 7183 children [also] randomly selected from the universal health insurance database.» (p. 63)

Instruments :
Questionnaires

Type de traitement des données :
Analyse statistique

3. Résumé

In the first article, the author observes «that maternal age at child birth and maternal educational level were associated with the vaccination status of the child […]. [The analysis also shows an association] between an incomplete vaccination status and not being the first child, not belonging to a two-parent family or having many vaccine providers […].» (p. 47) In the second article, «children who are not the firstborn and those with missed opportunities at the 2-month and the 12-month visits were more likely to had vaccine delays. […] A high number of children in the household may impact the accessibility to healthcare settings, including vaccination services. In addition, children with older siblings are possibly more exposed to minor illness, resulting in missed opportunities and vaccine delays […]. [The author observes] that children of single parent (versus living with a partner) had a greater risk for vaccine delays at 2-months and these results might be associated with constraints to access vaccination services […].» (p. 70)