This study examined e effects of outdoor air pollutants in Sydney, Australia, on daily mortality.
Time-series analysis as performed on counts of daily mortality and major outdoor air polluants (particulates, ozone, and nitrogen dioxide) in Sydney (1989 to 1993) with adjustment for seasonal and cyclical factors.
Poisson regression as calculated with allowance for overdispersion and autocorrelation.
The effects of lagging exposure by 1 to 2 days were assessed with singleand multiple-pollutant models.
An increase in daily mean particulate concentration from the 10th to the 90th centile was associated with an increase of 2.63% 95% confidence interval 0.87 to 0.41) in all-cause mortality and 0.68% (0.25 to 5.16) in cardiovascular mortality.
An increase in daily maximum 1-hour ozone concentration from the 10th to the 90th centile was associated with an increase of 0.04% (0.37 to 3.73) in all-cause mortality and 2.52% (-0.25 to 5.38) on cardiovascular mortality.
An increase in the daily mean nitrogen dioxide concentration from the 10th the 90th centile was associated with an increase of 7.71% (-0.34 to 6.40) in respiratory mortality.
Multiple-pollutant models suggest that the effects of particulates and ozone on all-cause and cardiovascular mortality, and of nitrogen dioxide on respiratory mortality, are independent of the effects of the other pollutants.
Current levels of air-pollution in Sydney are associated with daily mortality.
Mots-clés Pascal : Pollution air, Epidémiologie, Mortalité, Variation journalière, Homme, Série temporelle, Qualité air, Climat, Australie, Océanie, Particule en suspension, Ozone, Azote dioxyde, Toxicité
Mots-clés Pascal anglais : Air pollution, Epidemiology, Mortality, Daily variation, Human, Time series, Air quality, Climate, Australia, Oceania, Suspended particle, Ozone, Nitrogen dioxide, Toxicity
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0248953
Code Inist : 002B30A02A. Création : 11/09/1998.