1. Objectifs

Intentions :
The purpose of this study is to estimate «the proportion of children with vaccine delays at 2, 4, 6 and 12 months and the proportion of incomplete vaccination status by 24 months of age attributable to a vaccine delay at each of these visits. To identify more vulnerable populations, factors associated with vaccine delays at each vaccination visit from 2 to 12 months were assessed.» (p. 2)

2. Méthode

Échantillon/Matériau :
«The present study is based on the data from six cross-sectional surveys conducted in Quebec in 2006, 2008, 2010, 2012, 2014 and 2016 […]. [C]hildren in these studies were randomly selected from the Quebec Universal Health Insurance database which includes all children from the province.» (p. 2) Au total, l’échantillon est composé de 7183 enfants.

Instruments :
Questionnaires

Type de traitement des données :
Analyse statistique

3. Résumé

The results of this study demonstrate that «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. [The authors argue that 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 […]. [They] observed 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 […]. In the current study, the risk of vaccine delays for DTaP1 and DTaP2 [diphtheria, tetanus, and pertussis] decreases with higher maternal education. A literature review found that higher maternal level of education was associated with vaccine hesitancy which is itself associated with vaccine delays […].» (p. 13)