Association of diurnal temperature range with daily hospitalization for exacerbation of chronic respiratory diseases in
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RESEARCH
Open Access
Association of diurnal temperature range with daily hospitalization for exacerbation of chronic respiratory diseases in 21 cities, China Zihui Wang1†, Yumin Zhou1†, Ming Luo2†, Huajing Yang1†, Shan Xiao1†, Xiaoliang Huang3†, Yubo Ou4†, Yongbo Zhang5, Xianzhong Duan6, Wei Hu3, Chenghao Liao5, Yijia Zheng5, Long Wang5, Min Xie4, Longhui Tang1, Jinzhen Zheng1, Sha Liu1, Fan Wu1, Zhishan Deng1, Heshen Tian1, Jieqi Peng1, Xinwang Wang1, Nanshan Zhong1 and Pixin Ran1*
Abstract Background: The association between diurnal temperature range (DTR) and hospitalization for exacerbation of chronic respiratory diseases (CRD) was rarely reported. Objectives: To examine the association between DTR and daily hospital admissions for exacerbation of CRD and find out the potential effect of modifications on this association. Method: Data on daily hospitalization for exacerbation of chronic obstructive pulmonary disease (COPD), asthma and bronchiectasis and meteorology measures from 2013 through 2017 were obtained from 21 cities in South China. After controlling the effects of daily mean temperature, relative humidity (RH), particulate matter < 2.5 μm diameter (PM2.5) and other confounding factors, a standard generalized additive model (GAM) with a quasi-Poisson distribution was performed to evaluate the relationships between DTR and daily hospital admissions of CRD in a two-stage strategy. Subgroup analysis was performed to find potential modifications, including seasonality and population characteristics. (Continued on next page)
* Correspondence: [email protected] † Zihui Wang, Yumin Zhou, Ming Luo, Huajing Yang, Shan Xiao, Xiaoliang Huang and Yubo Ou contributed equally to this work. 1 State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in th
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