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[Mortality associated with fine and coarse suspended particles, in inhabitants of Monterrey Metropolitan Area].

Abstract：

OBJECTIVE:To estimate the mortality risk of fine (PM2.5) and coarse (PM2.5-10) particles in the Metropolitan Area of Mon-terrey (MAM). MATERIALS AND METHODS:A retrospective ecological time-series analysis (2000-2014) was conducted using total and specific causes of mortality, and daily mean PM2.5 and PM2.5-10. Generalized additive distributed lag models controlling for trend, seasonality, day of the week, meteoro-logical conditions and gaseous pollutants. RESULTS:Mean (SD) PM2.5 and PM2.5-10 concentrations were 26.59 μg/m3(11.06 μg/m3) and 48.83 μg/m3 (21.15 μg/m3). An increase of 10 μg/m3 of PM2.5 (lag 0) was associated with 11.16% (95%CI:1.03-21.39) increased risk of respiratory mortality in children <=5 years old and 6.6% (95%CI 3.31-9.37) increased risk of pneumonia-influenza in adults >=65 years old. The risk of mortality associated with the concentration of coarse particles was lower. CONCLUSIONS:Positive and significant associations were observed between exposure to particulate matter and daily mortality in the MAM ́s population. OBJETIVO:Estimar el riesgo de mortalidad asociado con la exposición a partículas finas (PM2.5) y gruesas (PM2.5-10) en la Zona Metropolitana de Monterrey (ZMM). MATERIAL Y MÉTODOS:Estudio ecológico con análisis retrospectivo de series de tiempo (2004-2014) de mortalidad total y especí-fica diaria, y promedio de PM2.5 y PM2.5-10. Modelos aditivos generalizados Poisson con rezagos distribuidos ajustados por tendencia, estacionalidad, día de la semana, condiciones meteorológicas y contaminantes gaseosos. RESULTADOS:83 (21.15) μg/m3. Cada 10 μg/m3 de aumento de PM2.5 (lag 0) incrementó el riesgo de mortalidad respiratoria en menores de cinco años 11.16% (IC95% 1.03-21.39) y de neumonía e influenza en mayores de 65 años 6.60% (IC95% 3.91-9.37). El riesgo de mortalidad asociado con las PM2.5-10 fue meno. CONCLUSIONES:Se observaron asociaciones positivas y significativas entre exposición a material particulado y la mortalidad diaria en población de la ZMM.

journal_name

Salud Publica Mex

journal_title

Salud publica de Mexico

authors

Martínez-Muñoz A,Hurtado-Díaz M,Cruz JC,Riojas-Rodríguez H

doi

10.21149/11184

subject

Has Abstract

pub_date

2020-09-01 00:00:00

pages

468-476

issue

eissn

0036-3634

issn

1606-7916

journal_volume

pub_type

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[Mortality associated with fine and coarse suspended particles, in inhabitants of Monterrey Metropolitan Area].