Relationship Between Type of Delivery and Growth Trajectory in the First Year of Life: The Araraquara Cohort Study.

Objective: The relationship between cesarean delivery and infant growth is controversial. Therefore, the aim of this study was to evaluate the association between the type of delivery and the growth trajectory of Brazilian infants in the first year of life.

Materials And Methods: This was a prospective cohort study conducted between 2016 and 2021 as part of the Araraquara Cohort Study that assessed quarterly anthropometry of 719 and 667 infants to evaluate, respectively, the effects of type of delivery on weight gain velocity (WGV) and length gain velocity (LGV) using generalized estimating equations.

Determination of resistance at zero and infinite frequencies in bioimpedance spectroscopy for assessment of body composition in babies.

. Bioimpedance spectroscopy (BIS) is a popular technique for the assessment of body composition in children and adults but has not found extensive use in babies and infants. This due primarily to technical difficulties of measurement in these groups.