The effects of air pollution on cardiovascular diseases: lag structures

To assess the lag structure between air pollution exposure and elderly cardiovascular diseases hospital admissions, by gender. Health data of people aged 64 years or older was stratified by gender in São Paulo city, Southeastern Brazil, from 1996 to 2001. Daily levels of air pollutants (CO, PM10, O3...

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Bibliographic Details
Published in:Revista de saúde pública 2006-08, Vol.40 (4), p.677-683
Main Authors: Martins, Lourdes Conceição, Pereira, Luiz A A, Lin, Chin A, Santos, Ubiratan P, Prioli, Gildeoni, Luiz, Olinda do Carmo, Saldiva, Paulo H N, Braga, Alfésio Luís Ferreira
Format: Article
Language:English
Subjects:
Aged
Air Pollution - adverse effects
Air Pollution - analysis
Brazil - epidemiology
Cardiovascular Diseases - epidemiology
Cardiovascular Diseases - etiology
Female
Gases - analysis
Geriatric Assessment - statistics & numerical data
Health Policy & Services
Humans
Humidity
Male
Middle Aged
Myocardial Ischemia - epidemiology
Myocardial Ischemia - etiology
Patient Admission - statistics & numerical data
Poisson Distribution
Sex Distribution
Statistics, Nonparametric
Temperature
Time Factors
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Summary:To assess the lag structure between air pollution exposure and elderly cardiovascular diseases hospital admissions, by gender. Health data of people aged 64 years or older was stratified by gender in São Paulo city, Southeastern Brazil, from 1996 to 2001. Daily levels of air pollutants (CO, PM10, O3, NO2, and SO2) , minimum temperature, and relative humidity were also analyzed. It were fitted generalized additive Poisson regressions and used constrained distributed lag models adjusted for long time trend, weekdays, weather and holidays to assess the lagged effects of air pollutants on hospital admissions up to 20 days after exposure. Interquartile range increases in PM10 (26.21 microg/m(3)) and SO2 (10.73 microg/m(3)) were associated with 3.17% (95% CI: 2.09-4.25) increase in congestive heart failure and 0.89% (95% CI: 0.18-1.61) increase in total cardiovascular diseases at lag 0, respectively. Effects were higher among female group for most of the analyzed outcomes. Effects of air pollutants for different outcomes and gender groups were predominately acute and some "harvesting" were found. The results show that cardiovascular diseases in São Paulo are strongly affected by air pollution.
ISSN:0034-8910
1518-8787
0034-8910
DOI:10.1590/s0034-89102006000500018