The effect of breastfeeding on children's growth indices up to 6 months: An application of multivariate t linear mixed model.

Background: This study aimed to determine the effect of breastfeeding on children's growth indices. Materials and Methods: Longitudinal data of children's growth (height, weight, and head circumference) were as a dependent variable and type of nutrition as an independent variable with using multivariate t linear mixed model. Results: The indicated that the height, weight, and head circumference of infants who were fed with breast milk showed a statistically significant difference (P < 0.05) with those of infants receiving formula. Conclusion: Exclusive feeding with breast milk, especially in the first 6 months of life, has a significant impact on the child's growth indicators compared to formula or, or a combination of both.