Characterizing the relationship between temperature and mortality in tropical and subtropical cities: a distributed lag non-linear model analysis in Hue, Viet Nam, 2009-2013

Global Health Action
Tran Ngoc DangYasushi Honda

Abstract

The relationship between temperature and mortality has been found to be U-, V-, or J-shaped in developed temperate countries; however, in developing tropical/subtropical cities, it remains unclear. Our goal was to investigate the relationship between temperature and mortality in Hue, a subtropical city in Viet Nam. We collected daily mortality data from the Vietnamese A6 mortality reporting system for 6,214 deceased persons between 2009 and 2013. A distributed lag non-linear model was used to examine the temperature effects on all-cause and cause-specific mortality by assuming negative binomial distribution for count data. We developed an objective-oriented model selection with four steps following the Akaike information criterion (AIC) rule (i.e. a smaller AIC value indicates a better model). High temperature-related mortality was more strongly associated with short lags, whereas low temperature-related mortality was more strongly associated with long lags. The low temperatures increased risk in all-category mortality compared to high temperatures. We observed elevated temperature-mortality risk in vulnerable groups: elderly people (high temperature effect, relative risk [RR]=1.42, 95% confidence interval [CI]=1.11-1.83; low t...Continue Reading

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Citations

Apr 6, 2017·International Journal of Environmental Research and Public Health·Xerxes T SeposoYasushi Honda
May 19, 2017·Nature Reviews. Cardiology·Simon StewartJohn J V McMurray
Feb 6, 2019·International Journal of Environmental Research and Public Health·Tran Ngoc DangDung Phung
Sep 26, 2019·Scientific Reports·Letícia de Castro Martins FerreiraMarilia Sá Carvalho
Dec 22, 2017·PloS One·Jerzy RomaszkoKatarzyna Glińska-Lewczuk
Jul 25, 2017·International Journal of Biometeorology·Hung Chak HoEdward Ng
Aug 14, 2019·International Journal of Biometeorology·Magali Hurtado-DíazHoracio Riojas-Rodríguez
Oct 27, 2017·American Journal of Public Health·Tran Ngoc DangYasushi Honda
Nov 27, 2018·Environmental Science and Pollution Research International·Ly M T LuongPhong K Thai
May 4, 2020·The Science of the Total Environment·Omid AboubakriEbrahim Mesgari
Jun 23, 2021·Environmental Science and Pollution Research International·Ahmad Norazhar Mohd YatimMazrura Sahani
Sep 26, 2021·Environmental Science and Pollution Research International·Mohammad Radwanur TalukderDung Phung

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