Comparison of birth weight, length, and head circumference between the BRISA-RP and Intergrowth-21st cohorts

Autor(es)

Pimenta, Joao Roberto R. ; Grandi, Carlos ; Aragon, Davi C. ; Cardoso, Viviane Cunha

• Tipo de documento: Artigo Científico
• Fonte: Jornal de Pediatria; v. 96, n. 4, p. 9-pg., 2020-07-01.

Resumo

Objectives: (a) To determine the 3rd, 50th, and 97th percentiles of weight, length, and head circumference of newborns from the Ribeirao Preto BRISA cohort, according to gender and gestational age, and compare them with the Intergrowth-21st standard; (b) To estimate the small for gestational age ( < 3rd percentile), large for gestational age ( > 97th percentile), stunting (length < 3rd percentile), and wasting (body mass index < 3rd percentile). Methods: Observational study of a cohort of 7702 newborns between 01/01/2010 and 12/31/2010 in the city of Ribeirao Preto, SP, Brazil. The 3rd, 50th, and 97th percentiles were determined for the anthropometric measurements using fractional polynomial regression. Results: The weight difference between Ribeirao Preto and Intergrowth-21st was small, being more pronounced in preterm infants (mean difference between the two populations of +266g); for full-term newborns, there was a mean difference of +66 g, and for post-term infants, of -113g. For length, the mean variation was always <1 cm; whereas for head circumference, preterm newborns showed a variation >1 cm, and full-term and post-term newborns showed a variation of <1 cm. The small and large for gestational age detection rates were 2.9% and 4.3%, respectively. Stunting affected 6.5% of all newborns and wasting, 1.5%, with a predominance in girls and in full-term pregnancies; both conditions were present in 0.4% of the sample. Conclusions: Newborns from Ribeirao Preto, when compared to the Intergrowth-21 standard, are heavier, longer, and have a larger head circumference until they reach full-term. (C) 2019 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. (AU)

• Processo FAPESP: 08/53593-0 - Fatores etiológicos da prematuridade e conseqüências dos fatores perinatais na saúde da criança: coortes de nascimentos em duas cidades brasileiras
• Beneficiário: Marco Antonio Barbieri
• Modalidade de apoio: Auxílio à Pesquisa - Temático