Journal of Shandong University (Health Sciences) ›› 2018, Vol. 56 ›› Issue (8): 63-69.doi: 10.6040/j.issn.1671-7554.0.2018.122

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Impacts of heatwaves on the number of hypertensive outpatient visits in Cangnan County during 2011 and 2013

XUE Li1, HU Wenqi1, WEI Ran1, ZHANG Anran1, LIN Junfen2, MA Wei1,3   

  1. 1. Department of Epidemiology, School of Public Health, Shandong University, Jinan 250012, Shandong, China;
    2. Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, Zhejiang, China;
    3. Shandong University Climate Change and Health Center, Jinan 250012, Shandong, China
  • Published:2022-09-27

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Abstract: Objective To investigate the impacts of heatwaves on the number of hypertensive outpatient visits in Cangnan County, Zhejing province during 2011 and 2013. Methods Data of hypertensive outpatients visits in the Third Peoples Hospital of Cangnan County and the daily meteorological data from July to September in 2011-2013 were collected and analyzed with generalized additive models(GAM)to evaluate their effects on different gender and age groups(elder group: ≥65 years, non-elder group: <65 years). Results From 2011 to 2013, a total of 7 heatwaves occurred in Cangnan County. The total number of hypertensive outpatient visits significantly increased on lag day 1(RR=1.20, 95%CI: 1.06-1.37). The heatwaves imposed the greatest effects on female patients on lag day 1(RR=1.40, 95%CI: 1.14-1.72). The number of visits increased on lag day 1 for the non-elder group(RR=1.22, 95%CI: 1.03-1.44), and on lag day 3 for the elder group(RR=1.25, 95%CI: 1.06-1.48). Conclusion Heatwaves are associated with an increase of hypertensive outpatient visits in Cangnan County. Females are vulnerable to heatwaves, and heatwaves can increase the number of outpatient visits in both elder group and non-elder group.

Key words: Heat wave, Hypertension, Generalized addictive models, Outpatient visits

CLC Number: 

  • R181.3
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