Maximum apparent temperature is associated with lower birth weight in a population exposed to a constant high ambient temperature in Piura, Peru

• Autores: Fano-Sizgorich, Diego, Vásquez-Velásquez, Cinthya, Sernaqué, Víctor, F. Gonzales, Gustavo
• Formato: artículo
• Fecha de Publicación: 2023
• Institución: Sociedad Peruana de Obstetricia y Ginecología
• Repositorio: Revista Peruana de Ginecología y Obstetricia
• Lenguaje: español; inglés
• OAI Identifier: oai:ginecologiayobstetricia.pe:article/2567
• Enlace del recurso: https://ginecologiayobstetricia.pe/index.php/RPGO/article/view/2567
• Nivel de acceso: acceso abierto
• Materia: Hot temperature; Heat; Birth weight; Peru, Latin America; Temperatura alta; Calor; Peso al nacer; Perú; América latina

Objective: To evaluate the association between maximum apparent temperature(HImax) during pregnancy with birth weight in newborns in the province of Piura,2011-2016. Methods: Semi-ecological study in which maternal-perinatal data fromSanta Rosa Hospital (N=17,788) and apparent maximum temperature data wereevaluated. Four exposure windows were analyzed: the entire pregnancy and eachgestational trimester, which were assigned according to date of birth and gestationalage, categorized into quartiles. Linear regression models were constructed toevaluate the association between variables. Results: A negative association wasfound between birth weight and HImax in all exposure windows except in the firsttrimester. The largest decrease in birth weight was observed in the P95 exposuregroup in the whole pregnancy (-38.50 95%CI -71.46; -5.53) and third trimester(-70.48 95%CI -102.69; -38.28) exposure windows, but not in the second trimester.Conclusions: HImax during pregnancy is associated with lower birth weight, but withdifferent susceptibility depending on the stage of pregnancy.