| Titre : | Ambient air pollution and asthma exacerbations in children : An eight-city analysis. (2006) |
| Auteurs : | SCHILDCROUT (Jonathan-S) : USA. Department of Biostatistics. School of Medicine. Vanderbilt University. Nashville. TN. ; Jane-Q KOENIG ; Thomas LUMLEY ; SHAPIRO (Gail-G) : USA. Department of Pediatrics. School of Medicine. University of Washington. Seattle. WA. ; Lianne SHEPPARD ; SLAUGHTER (James-C) : USA. Department of Biostatistics. School of Public Health. University of North Carolina. Chapel Hill. NC. ; University of Washington. Center for Particulate Air Pollution and Health. Environmental Protection Agency Northwest Research. Seattle. WA. USA ; University of Washington. School of Public Health. Department of Biostatistics. Seattle. WA. USA ; University of Washington. School of Public Health. Department of Environmental Health. Seattle. WA. USA |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 164, n° 6, 2006) |
| Pagination : | 505-517 |
| Langues: | Anglais |
| Mots-clés : | Asthme ; Santé environnementale ; Pollution atmosphérique ; Enfant ; Homme ; Milieu urbain ; Monoxyde carbone ; Dioxyde azote ; Pédiatrie ; Dioxyde soufre ; Epidémiologie ; Appareil respiratoire [pathologie] ; Bronchopneumopathie obstructive |
| Résumé : | [BDSP. Notice produite par INIST-CNRS BR0xQ4s4. Diffusion soumise à autorisation]. The authors investigated the relation between ambient concentrations of five of the Environmental Protection Agency's criteria pollutants and asthma exacerbations (daily symptoms and use of rescue inhalers) among 990 children in eight North American cities during the 22-month prerandomization phase (November 1993-September 1995) of the Childhood Asthma Management Program. Short-term effects of carbon monoxide, nitrogen dioxide, particulate matter less than 10 mum in aerodynamic diameter (PM10), sulfur dioxide, and warm-season ozone were examined in both one-pollutant and two-pollutant models, using lags of up to 2 days. Lags in carbon monoxide and nitrogen dioxide were positively associated with both measures of asthma exacerbation, and the 3-day moving sum of sulfur dioxide levels was marginally related to asthma symptoms. PM10 and ozone were unrelated to exacerbations. The strongest effects tended to be seen with 2-day lags, where a 1-parts-per-million change in carbon monoxide and a 20-parts-per-billion change in nitrogen dioxide were associated with symptom odds ratios of 1.08 (95% confidence interval (Cl) : 1.02,1.15) and 1.09 (95% CI : 1.03,1.15), respectively, and with rate ratios for rescue inhaler use of 1.06 (95% Cl : 1,01,1.10) and 1.05 (95% Cl : 1.01,1.09), respectively. The authors believe that the observed carbon monoxide and nitrogen dioxide associations can probably be attributed to mobile-source emissions, though more research is required. |
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