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  • Title: [Association between particulate air pollution and daily respiratory and cardiovascular hospital admissions].
    Author: Zhang YP, Zhang ZQ, Li JF.
    Journal: Zhonghua Yu Fang Yi Xue Za Zhi; 2008 Feb; 42(2):96-102. PubMed ID: 18642661.
    Abstract:
    OBJECTIVE: To establish concentration-response relationship model for high particulate air pollution and daily hospital admissions for early warning system. METHODS: The Poisson generalized additive model was used with natural cubic spline smoothing for air pollutants of PM10, SO2, NO2, CO to determine the shape of concentration-response relationship. And piecewise linear regression was used for risk analysis. RESULTS: Age-specific analysis suggested the non-linear association between particulate air pollution and hospital admissions in all age groups. In respiratory and cardiovascular admissions, the percentage increase was 0.716%-2.145% and 0.65% for 10 microg/m3 increase in PM10, respectively. Cause-specific analysis suggested the non-linear association between particulate air pollution and hospital admissions for all diseases. The significant association was found with COPD and ischaemic heart disease, and the related percentage increase was 2.94% and 1.94%, respectively. Heating and noheating period analysis suggested the effect of PM10 was higher in noheating period than that in heating period. CONCLUSION: Compared with mortality, particulate air pollution should affect the hospital admissions more greatly, the percentage increase should be higher for hospital admissions than that of mortality (0.25%).
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