| Titre : | Exposure to ambient fine particulate matter and primary cardiac arrest among persons with and without clinically recognized heart disease. (2003) |
| Auteurs : | J. SULLIVAN ; H. CHECKOWAY ; N. ISHIKAWA ; J. KAUFMAN ; L. SHEPPARD ; D. SISCOVICK ; Department of Biostatistics. School of Public Health. University of Washington. Seattle. WA. USA ; Department of Environmental Health. School of Public Health. University of Washington. Seattle. WA. USA |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 157, n° 6, 2003) |
| Pagination : | 501-509 |
| Langues: | Anglais |
| Mots-clés : | Homme ; Matière ; Pollution atmosphérique ; Facteur risque ; Toxicologie ; Cardiopathie ; Epidémiologie ; Appareil circulatoire [pathologie] |
| Résumé : | [BDSP. Notice produite par INIST-CNRS 5WR0xn88. Diffusion soumise à autorisation]. The authors studied the association between incidence of primary cardiac arrest and daily measures of fine particulate matter (<=2.5 mum) using a case-crossover study of 1,206 Washington State out-of-hospital cardiac arrests (1985-1994) among persons with (n=774) and without (n=432) clinically recognized heart disease. The authors compared particulate matter levels on the day of the cardiac event and the 2 days preceding the event with levels from matched reference days. The estimated relative risk for a 13.8-mug/m3 increase in fine particulate matter (nephelometry : 0.54 x 10-1 km-1 bsp) on the day prior to cardiac arrest was 0.94 (95% confidence interval : 0.88,1.02). Pollutant levels measured on the same day as the event and on the 2 days preceding the event demonstrated similar results. No increased risk was found among all cases with preexisting cardiac disease (odds ratio=0.97,95% confidence interval : 0.89,1.07) ; however, an unexpected association appeared between current smokers with preexisting heart disease and increased particulate matter levels 2 days prior to the event (odds ratio=1.29,95% confidence interval : 1.06,1.55). This association was not present in the 0-or 1 - day lag analyses or in persons with other diseases. There was no consistent association between increased levels of fine particulate matter and risk of primary cardiac arrest. |
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