ID 112245
Title Alternative
Ozone exposure and schoolchildren
Author
Kurai, Jun Tottori University
Noma, Hisashi The Institute of Statistical Mathematics
Sano, Hiroyuki Kinki University
Iwata, Kyoko Tottori University|Mio Fertility Clinic
Tohda, Yuji Kinki University
Watanabe, Masanari Tottori University
Keywords
ozone
peak expiratory flow
pulmonary function
respiratory symptoms
schoolchildren
Content Type
Journal Article
Description
The average annual ozone levels have been increasing in Japan, even though the high ozone levels have decreased in recent years. There is limited information on the relationship between ozone exposure, pulmonary function, and respiratory symptoms in schoolchildren in Japan. The aim of this study was to investigate the effects of short-term ozone exposure on pulmonary function and respiratory symptoms in Japanese schoolchildren. Afternoon peak expiratory flow (PEF) values and respiratory symptom scores were recorded daily in 276 schoolchildren from September to October 2016 and from January to February 2017. The association of daily ozone levels with PEF was assessed using a linear mixed model and that with respiratory symptoms was evaluated by generalized estimating equations logistic regression analysis. There was a significant association of daily ozone levels with PEF values. A 13.6-ppb increment in the interquartile range for ozone exposure was significantly associated with a decrease in PEF of −3.67 L/min (95% confidence interval −4.73, −2.61). However, increased ozone levels were not associated with an increased risk of respiratory symptoms. Our present findings suggest that more attention should be paid to the potential adverse effects of short-term ozone exposure on pulmonary function in schoolchildren.
Journal Title
The Journal of Medical Investigation
ISSN
13496867
13431420
NCID
AA12022913
AA11166929
Publisher
Faculty of Medicine Tokushima University
Volume
65
Issue
3-4
Start Page
236
End Page
241
Sort Key
236
Published Date
2018-08
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher