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

Fano-Sizgorich D.; Vásquez-Velásquez C.; Sernaqué V.; Gonzales G.F. · Revista Peruana de Ginecologia y Obstetricia (2023) · DOI: 10.31403/rpgo.v69i2567

Resumen

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 from Santa Rosa Hospital (N=17,788) and apparent maximum temperature data were evaluated. Four exposure windows were analyzed: the entire pregnancy and each gestational trimester, which were assigned according to date of birth and gestational age, categorized into quartiles. Linear regression models were constructed to evaluate the association between variables. Results: A negative association was found between birth weight and HImax in all exposure windows except in the frst trimester. The largest decrease in birth weight was observed in the P95 exposure group 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 with diferent susceptibility depending on the stage of pregnancy. © Revista Peruana de Ginecologia y Obstetricia.All rights reserved.

Instituciones: Universidad Peruana Cayetano Heredia