The Effects of Short-Term and Very Short-Term Particulate Matter Exposure on Asthma-Related Hospital Visits: National Health Insurance Dataopen access
- Authors
- Song, Dae Jin; Choi, Sun Hee; Song, Woo-Jung; Park, Kyung Hee; Jee, Young-Koo; Cho, Sang-Heon; Lim, Dae Hyun
- Issue Date
- Oct-2019
- Publisher
- 연세대학교의과대학
- Keywords
- Particulate matter; asthma; outpatients; National Health Insurance
- Citation
- Yonsei Medical Journal, v.60, no.10, pp 952 - 959
- Pages
- 8
- Indexed
- SCI
SCIE
SCOPUS
KCI
- Journal Title
- Yonsei Medical Journal
- Volume
- 60
- Number
- 10
- Start Page
- 952
- End Page
- 959
- URI
- https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/1556
- DOI
- 10.3349/ymj.2019.60.10.952
- ISSN
- 0513-5796
1976-2437
- Abstract
- Purpose
The purpose of this study was to investigate the effects of short-term and very short-term exposure to particulate matter (PM) exceeding the daily average environmental standards for Korea (≤100 µg/m3 for PM10 and ≤50 µg/m3 for PM2.5) on on asthma-related hospital visits.
Materials and Methods
This was a population-based, case-crossover study using National Health Insurance and air pollution data between January 1, 2014 and December 31, 2016. The event day was defined as a day when PM exceeded the daily average environmental standard (short-term exposure) or daily average environmental standard for 2 hours (very short-term exposure). The control day was defined as the same day of the week at 1 week prior to the event day.
Results
Compared with control days, asthma-related hospital visits on the 24-hr event days and 2-hr event days increased by 4.10% and 3.45% for PM10 and 5.66% and 3.74% for PM2.5, respectively. Asthma-related hospital visits increased from the 24-hr event day for PM10 to 4 days after the event day, peaking on the third day after the event day (1.26, 95% confidence interval, 1.22–1.30). Hospitalizations also increased on the third day after the event. While there was a difference in magnitude, PM2.5 exposure showed similar trends to PM10 exposure.
Conclusion
We found a significant association between short-term and very short-term PM exposure exceeding the current daily average environmental standards of Korea and asthma-related hospital visits. These results are expected to aid in establishing appropriate environmental standards and relevant policies for PM.
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- Appears in
Collections - 2. Clinical Science > Department of Pediatrics > 1. Journal Articles
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