Figure 4.

Marginal predictions of mixed breastmilk and formula (triangle) and exclusive, only breastmilk (circle) breastfeeding rates in maternity units for the variables in interaction with the Baby-Friendly Hospital Initiative (BFHI) in the final model (Model 5). The ‘Accredited’ and ‘Non-accredited’ sections present the marginal predictions for mothers who delivered in a BFHI-accredited and non-accredited maternity unit, respectively. The section ‘Difference’ presents the marginal effects, that is, the differences in predicted breastfeeding initiation rates between accredited and non-accredited maternity units. The vertical lines indicate the mean marginal prediction for each type of breastfeeding. The horizontal lines across the triangles or circles represent the 90% confidence interval. The model included the BFHI variable, neonatal, maternal, maternity unit and French administrative department characteristics, as well as a spatial random effect at the French administrative department level, and interactions terms between the BFHI and the maternal education level and neonatal birthweight. Data source: 2010, 2016 and 2021 French Perinatal National Surveys