Browsing by Author "W.R. Wan Mahiyuddin"

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    Acute effects of air pollution on cardiovascular hospital admissions in the port district of Klang, Malaysia: A time-series analysis
    (Elsevier, 2024) N.N. Abd Rahim; R. Ahmad Zaki; A. Yahya; W.R. Wan Mahiyuddin
    In this study, the acute impacts of air pollution, especially from shipping emissions, on cardiovascular hospital admissions in Klang, Malaysia, a notable port district, are explored. Time-series analysis and Quasi-Poisson regressions, combined with distributed lag non-linear models, were employed to examine the relationships between daily levels of pollutants and hospital admissions for cardiovascular issues. Focus was placed on the pollutants NO2 (nitrogen dioxide), SO2 (sulphur dioxide), O3 (ozone), particulate matters with diameters ?10 ?m (PM10), particulate matters with diameters ?2.5 ?m (PM2.5), and CO (carbon monoxide), with consideration of lag effects up to 7 days. An increment of 10 ?g/m3 in NO2 concentrations was associated with a 7.32% increase in cardiovascular admissions on the exposure day, with statistically significant elevations in relative risks at lag 0 were observed for admissions among patients with ischaemic heart disease, those aged less than 65 years, and male patients.