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  1. Effects of air pollution on daily hospital admissions for respiratory disease in London between 1987-88 and 1991-92.

    Article - En anglais

    Study objective

    To investigate whether air pollution levels in London have short term effects on hospital admissions for respiratory disease.

    Design

    Poisson regression analysis of daily counts of hospital admissions, adjusting for effects of trend, seasonal and other cyclical factors, day of the week, holidays, influenza epidemic, temperature, humidity, and autocorrelation.

    Pollution variables were particulates (black smoke : BS), sulphur dioxide (SO2), ozone (O3), and nitrogen dioxide (NO2), lagged 0-3 days.

    Setting and patients

    All immediate admissions for respiratory disease (ICD 460-519) to hospitals in London health districts in the five years April 1987 to February 1992 for all ages and the 0-14,15-64, and 65+age groups.

    Main results

    O3 (lagged one day) was significantly associated with an increase in daily admissions among all age groups, except the 0-14 group, and this effect was stronger in the « warm » season (April-September).

    In this season, the relative risks of admission associated with an increase in 8 hour O3 levels of 29ppb (10th to 90th centile) were 1.0483 (95% CI 1.0246,1.0726), 1.0294 (0.9930,1.0672), 1.0751 (1.0354,1.1163), and 1.0616 (1.0243,1.1003) for all ages and age groups 0-14,15-64, and 65+respectively.

    Very few significant associations were observed with the other pollutants, though these tended to be positive.

    Controlling for other pollutants made little difference to the O3 coefficients.

    There was evidence of a thresho...

    Mots-clés Pascal : Pollution air, Toxicité, Court terme, Epidémiologie, Appareil respiratoire pathologie, Admission hôpital, Homme, Santé et environnement, Milieu urbain, Angleterre, Grande Bretagne, Royaume Uni, Europe, Série temporelle

    Mots-clés Pascal anglais : Air pollution, Toxicity, Short term, Epidemiology, Respiratory disease, Hospital admission, Human, Health and environment, Urban environment, England, Great Britain, United Kingdom, Europe, Time series

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 96-0247780

    Code Inist : 002B03M02. Création : 199608.