Authors: Jiménez, Eva¹; Linares, Cristina²; Martínez, David³; Díaz, Julio⁴

Source: International Journal of Environmental Health Research, Volume 21, Number 5, 1 October 2011 , pp. 372-390(19)

Publisher: Taylor and Francis Ltd

Abstract:

A time-series study was conducted to ascertain the short-term effects of different-sized airborne particulate matter (PM) on daily respiratory and cardiovascular cause-specific mortality in winter and summer, among subjects aged over 75 years in Madrid. Poisson regression was used to analyse the time-series, in which the dependent variable was daily mortality due to different specific respiratory and circulatory causes, and the principal independent variables were daily mean PM₁₀, PM_2.5 and PM_10-2.5 concentrations; other variables: other air pollutants (chemicals, biotic and acoustic), influenza, trend, seasonality and autocorrelation of the series. The results indicated an association between coarser PM fractions (PM₁₀ and PM_10-2.5) and respiratory-specific mortality on the one hand, and between PM_2.5 and cardiovascular-specific mortality on the other. While the risk of mortality due to exposure to particulate matter was greater in summer than in winter, this difference was statistically significant solely for total organic-cause mortality.

Keywords: particulate matter; daily mortality; elderly; time series

Document Type: Research article

DOI: http://dx.doi.org/10.1080/09603123.2011.560251

Affiliations: 1: Department of Preventive Medicine,San Carlos University Teaching Hospital, Madrid 2: National Centre for Epidemiology,Environmental Epidemiology and Cancer Unit, Carlos III Institute of HealthMadrid 3: Department of Preventive Medicine, Faculty of Medicine,Complutense University, Madrid 4: National School of Public Health,Carlos III Institute of Health, Madrid, Spain

Publication date: 2011-10-01

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