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Effect of PM(10) and O(3) on infant mortality among residents in the Mexico City Metropolitan Area: a case-crossover analysis, 1997-2005.

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dc.contributor.author Carbajal-Arroyo, L.
dc.contributor.author Miranda-Soberanis, V.
dc.contributor.author Medina-Ramón, M.
dc.contributor.author Rojas-Bracho, L.
dc.contributor.author Tzintzun, G.
dc.contributor.author Solís-Gutiérrez, P.
dc.contributor.author Méndez-Ramírez, I.
dc.contributor.author Hurtado-Díaz, M.
dc.contributor.author Schwartz, J.
dc.contributor.author Romieu, I.
dc.date.accessioned 2022-01-18T19:26:54Z
dc.date.available 2022-01-18T19:26:54Z
dc.date.issued 2011
dc.identifier.uri https://hdl.handle.net/20.500.12866/11007
dc.description.abstract Introduction Consistent evidence has shown a positive association between air pollution and daily mortality among adults. Less is known about its effect on infant mortality and the modification of this association by socioeconomic status (SES). Objective To assess the association of particulate matter with an aerodynamic diameter of ≤10 μm (PM10) and ozone (O3) on infant mortality and its modification by SES. Methods We evaluated the relationship of 24 h mean PM10 and 1 h daily maximum O3 levels with 12 079 allcause deaths (3903 respiratory deaths) among 1- to 11-month-old infants residing in the Mexico City Metropolitan Area between January 1997 and December 2005 using a case-crossover approach. The data were analysed using conditional logistic regression models, controlling for weather conditions and day of the week. Results Single-effect models showed, for all-cause mortality, increases of 5.5% (95% CI 1% to 10%) at lag1 and 6.6% (2% to 11.4%) at lag2; cumulative exposure models (0-2 days) showed an increase of 6.3% (0.01% to 32.7%). Respiratory mortality increased marginally at 5.3% (-0.02% to 13.2%) with a 1-day lag and 10% (2.1% to 18%) with a 2-day lag per increase of 38.7 μg/ m3 (IQR) in PM10 levels. When data were stratified by SES (low, medium, and high), only infants with low and medium SES presented a significant increase in risk of all-cause mortality and respiratory mortality in relation to PM10. O3 was only significantly related to respiratory mortality in low SES. Conclusion Our results suggest that in the Mexico City Metropolitan Area, infants with lower SES (low to medium) are at higher risk of mortality when exposed to ambient PM10 and O3. en_US
dc.language.iso eng
dc.publisher BMJ Publishing Group
dc.relation.ispartofseries Journal of Epidemiology and Community Health
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Female en_US
dc.subject Humans en_US
dc.subject Logistic Models en_US
dc.subject Infant, Newborn en_US
dc.subject Social Class en_US
dc.subject Cross-Over Studies en_US
dc.subject Particle Size en_US
dc.subject Air Pollutants toxicity en_US
dc.subject Cause of Death trends en_US
dc.subject Cities epidemiology en_US
dc.subject Environmental Exposure adverse effects en_US
dc.subject Infant Mortality trends en_US
dc.subject Mexico epidemiology en_US
dc.subject Ozone toxicity en_US
dc.title Effect of PM(10) and O(3) on infant mortality among residents in the Mexico City Metropolitan Area: a case-crossover analysis, 1997-2005. en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1136/jech.2009.101212
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.03.09
dc.relation.issn 1470-2738


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