The relationship between physical growth and infant behavioral development in rural Guatemala

The present study investigated the relationship between a number of anthropometric indices and behavioral development during the first 2 years of life in rural Guatemala. Length and weight were the indices most strongly correlated with behavioral development. If the effect of the infant's length and weight was statistically controlled for, none of the other anthropometric variables explained a significant proportion of the variance in behavioral development. Controlling the length (or weight) assessed at the same age as the behavioral assessment, length (or weight) for younger ages was not significantly correlated with behavioral development. Changes in length or weight over time correlated with changes in behavioral performance. We were unable to explain the association between physical growth and behavioral development by a number of variables including gestational age, nutrient intake, prevalence of disease, and familial characteristics.This study investigates the relationship between a number of anthropometric indices and behavioral development during the first 2 years of life in rural Guatemala. Length and weight are the indices most strongly correlated with behavioral development. If the effect on the infant's length and weight are statistically controlled for, none of the other anthropometric variables explain a significant proportion of the variance in behavioral development. Controlling for length (or weight) assessed at the same age as the behavioral assessment, length (or weight) for younger ages is not significantly correlated with behavioral development. Changes in length or weight over time are correlated with changes in behavioral performance. The authors are unable to explain the association between physical growth and behavioral developemnt by a number of variables including gestational age, nutrient intake, prevalence of disease, an familial characterisitcs.