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Authors
Fujitani, Yusuke Division of Health Administration and Promotion, Department of Social Medicine, School of Medicine, Tottori University Faculty of Medicine
Otani, Shinji International Platform for Dryland Research and Education, Tottori University Tottori University Researchers KAKEN Search Researchers
Majbauddin, Abir International Platform for Dryland Research and Education, Tottori University
Amano, Hiroki Division of Health Administration and Promotion, Department of Social Medicine, School of Medicine, Tottori University Faculty of Medicine Tottori University Researchers KAKEN Search Researchers
Masumoto, Toshio Division of Health Administration and Promotion, Department of Social Medicine, School of Medicine, Tottori University Faculty of Medicine Tottori University Researchers
Kurozawa, Youichi Division of Health Administration and Promotion, Department of Social Medicine, School of Medicine, Tottori University Faculty of Medicine Tottori University Researchers KAKEN Search Researchers
Keywords
ambulance transport
case-crossover study
heat stroke
maximum air temperature
Abstract
Background The frequency and intensity of hot weather have increased. In Japan, there have been many studies of the relationship between ambulance transports owing to heat stroke (ATHS) and high air temperature in the summer season. However, there have been very few reports focusing on ATHS in spring. Therefore, we investigated the effect of the maximum air temperature on ATHS not only in summer but also in spring, to help with development of effective measures to prevent heat stroke.

Methods We obtained daily ATHS and meteorological data from April to September in 2017 in Tottori Prefecture. We used a time-stratified case-crossover method for data analysis.

Results A total 382 cases of ATHS were identified from April to September in 2017 in Tottori. The number of cases was highest in July, followed by August and May. Maximum air temperature was significantly linked to ATHS. The risk of ATHS was increased 1.13 times when maximum air temperature rose by 1°C. In summer, the risk on extremely hot days (maximum air temperature ? 35°C) increased by 5.55 times or more compared with that on days below 30 °C (< 30°C). The risk was approximately four times greater on hot days (? 30°C and < 35°C) than that on relatively cooler days (< 30°C) during the spring months of April through May.

Conclusion Maximum air temperature was significantly linked to ATHS. It is necessary to pay particular attention to heat stroke prevention not only on extremely hot days in summer but also on hot days in the spring.
Publisher
Tottori University Medical Press
Content Type
Journal Article
Link
ISSN・ISBN
05135710
NCID
AA00892882
Journal Title
Yonago Acta Medica
Current Journal Title
Yonago Acta Medica
Volume
62
Issue
1
Start Page
47
End Page
52
Published Date
2019-03-28
Publisher-DOI
Text Version
Publisher
Rights
注があるものを除き、この著作物は日本国著作権法により保護されています。 / This work is protected under Japanese Copyright Law unless otherwise noted.
Citation
Yonago Acta Medica. 2019, 62(1), 47-52
Department
Faculty of Medicine/Graduate School of Medical Sciences/University Hospital
Language
English