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Ambient temperature and term birthweight in Latin American cities.
Bakhtsiyarava, Maryia; Ortigoza, Ana; Sánchez, Brisa N; Braverman-Bronstein, Ariela; Kephart, Josiah L; Rodríguez López, Santiago; Rodríguez, Jordan; Diez Roux, Ana V.
Afiliación
  • Bakhtsiyarava M; Institute of Urban and Regional Development, University of California Berkeley, USA. Electronic address: mariab@berkeley.edu.
  • Ortigoza A; Urban Health Collaborative, Dornsife School of Public Health, Drexel University, USA.
  • Sánchez BN; Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, USA.
  • Braverman-Bronstein A; Urban Health Collaborative, Dornsife School of Public Health, Drexel University, USA.
  • Kephart JL; Urban Health Collaborative, Dornsife School of Public Health, Drexel University, USA.
  • Rodríguez López S; Centro de Investigaciones y Estudios sobre Cultura y Sociedad, Consejo Nacional de Investigaciones Científicas y Técnicas y Universidad Nacional de Córdoba, Córdoba, Argentina; Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina.
  • Rodríguez J; Urban Health Collaborative, Dornsife School of Public Health, Drexel University, USA.
  • Diez Roux AV; Urban Health Collaborative, Dornsife School of Public Health, Drexel University, USA; Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, USA.
Environ Int ; 167: 107412, 2022 09.
Article en En | MEDLINE | ID: mdl-35870377
BACKGROUND: Extreme temperatures may lead to adverse pregnancy and birth outcomes, including low birthweight. Studies on the impact of temperature on birthweight have been inconclusive due to methodological challenges related to operationalizing temperature exposure, the definitions of exposure windows, accounting for gestational age, and a limited geographic scope. METHODS: We combined data on individual-level term live births (N≈15 million births) from urban areas in Brazil, Chile, and Mexico from 2010 to 2015 from the SALURBAL study (Urban Health in Latin America) with high-resolution daily air temperature data and computed average ambient temperature for every month of gestation for each newborn. Associations between full-term birthweight and average temperature during gestation were analyzed using multi-level distributed lag non-linear models that adjusted for newborn's sex, season of conception, and calendar year of child's birth; controlled for maternal age, education, partnership status, presence of previous births, and climate zone; and included a random term for the sub-city of mother's residence. FINDINGS: Higher temperatures during the entire gestation are associated with lower birthweight, particularly in Mexico and Brazil. The cumulative effect of temperature on birthweight is mostly driven by exposure to higher temperatures during months 7-9 of gestation. Higher maternal education can attenuate the temperature-birthweight associations. INTERPRETATION: Our work shows that climate-health impacts are likely to be context- and place-specific and warrants research on temperature and birthweight in diverse climates to adequately anticipate global climate change. Given the high societal cost of suboptimal birthweight, public health efforts should be aimed at diminishing the detrimental effect of higher temperatures on birthweight. FUNDING: The Wellcome Trust.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Temperatura / Peso al Nacer Tipo de estudio: Prognostic_studies Límite: Female / Humans / Newborn / Pregnancy Idioma: En Revista: Environ Int Año: 2022 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Temperatura / Peso al Nacer Tipo de estudio: Prognostic_studies Límite: Female / Humans / Newborn / Pregnancy Idioma: En Revista: Environ Int Año: 2022 Tipo del documento: Article Pais de publicación: Países Bajos