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vol.73 número2Efectos a corto plazo de la contaminación atmosférica sobre la mortalidad: resultados del proyecto EMECAM en Vitoria-Gasteiz, 1990-94El proyecto EMECAM: discusión de los resultados en las ciudades participantes índice de autoresíndice de assuntospesquisa de artigos
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Revista Española de Salud Pública

versão On-line ISSN 2173-9110versão impressa ISSN 1135-5727


ARRIBAS MONZON, Federico et al. The short-term impact of air pollution on the respiratory mortality. Results of the EMECAM project in the city of Saragossa, 1991-1995. Rev. Esp. Salud Publica [online]. 1999, vol.73, n.2, pp.293-302. ISSN 2173-9110.

BACKGROUND: To assess the short-term impact of pollution on the respiratory death rate in the city of Saragossa throughout the 1991-1995 period and to pinpoint whether any differences exists in terms of age and time of the year. METHODS: The relationship of daily concentrations of smog and SO2 to the daily deaths due to respiratory diseases (CIE-9 460-486) and chronic lung blockage disease and similar EPOC-EA (490-496) was analyzed using Poisson models in keeping with the EMECAM procedure. Possible differences in the impact on those below and over age 70 and according to the six-month period in question were researched. Relative risks (RR) and 95% confidence intervals (CI95%) WERE CALCULATED FOR 10m gr/m3 rises in pollutant. RESULTS: A relationship was found to exist between the respiratory and smog death rate (RR 1.028 CI95% 1.006-1051), the highest risk being during the six-months period of warm weather. For those individuals under age 70, the relationship remained the same throughout this six-month period and was negative for those individuals over age 70. The RR’s for the death rate based on EPOC-EA were, overall, 1.038 (CI95% 1.002-1075) and of 1.068 (CI95%: 1.004-1.137) for the six-month period of warm weather. The SO2 pollution showed a positive relationship to the respiratory death rate for the warm period for all ages, RR 1.093 (CI95%: 1.006-1.187) and for those under age 70 (RR 1.240 CI95%: 1.028-1.496). The impact was not conclusive for the cases of pneumonia. CONCLUSIONS: Low levels of air pollution can have a significant impact on the respiratory death rate, especially among the elderly and during the six-month period of warm weather.

Palavras-chave : Respiratory Mortality; Air pollution; Poisson regression.

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