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KMID : 1156220160420050324
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Journal of Environmental Health Sciences
2016 Volume.42 No. 5 p.324 ~ p.332
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Hospital Visits, Admissions and Hospital Costs among Patients with Respiratory and Cardiovascular Diseases according to Particulate Matter in Seoul
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Lee Hyeong-Suk
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Abstract
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Objectives: The annual average of PM10 in Seoul was 45 μ/m3, which surpasses the WHO annual guidelines (20 μ/m3). Most previous analyses of the effects of PM exposure have been retrospective studies using single hospital data, and fewer studies have attempted to address the relationship of PM10 and hospital costs. This study was conducted to investigate the effects of the concentration of PM10 on hospital visits, admissions and hospital costs in patients with respiratory and cardiovascular diseases.
Methods: Medical data from the National Health Insurance Service and the monthly average of PM10 from National Institute of Environmental Research were used to identify the effects of PM10 on hospital visits, admissions and hospital costs. We applied Poisson regression and linear regression to perform the analysis.
Results: The relative risks for admissions per 10 μ/m3 increase in PM10 were 23.11%, 10.2% and 6.9% increases for acute bronchiolitis, asthma and bronchitis, respectively. The relative risk for hospital visits per 10 μ/m3 increase in PM10 were 10.4%, 6.7% and 5.9% for chronic obstructive pulmonary disease, asthma and chronic sinusitis, respectively. For cardiovascular disease, the relative risk for admissions per 10 μ/m3 increase in PM10 were 2.2% and 2.1% increases in angina and acute myocardial infarction, respectively. A 10 μ/m3 increase in the monthly average of PM10 corresponded to 170,723,000 won (95% CI: 125,587,000-215,860,000 won), 123,636,000 won (95% CI: 47,784,000-199,487,000 won) and 78,571,000 won (95% CI: 29,062,000-128,081,000 won) increases in hospital costs for asthma, acute tonsillitis and chronic sinusitis, respectively.
Conclusion: Hospital admissions for respiratory and cardiovascular disease were associated with PM10 levels. PM10 exposure is also associated with increased costs for respiratory diseases. ,
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KEYWORD
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Cardiovascular disease, hospital cost, patient admission, particulate matter, respiratory disease
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