The impact of relative humidity and atmospheric pressure on mortality in Guangzhou, China

Chun Quan Ou, Jun Yang, Qiao Qun Ou, Hua Zhang Liu, Guo Zhen Lin, Ping Yan Chen, Jun Qian, Yu Ming Guo

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)

Abstract

Objective: Although many studies have examined the effects of ambient temperatures on mortality, little evidence is on health impacts of atmospheric pressure and relative humidity. This study aimed to assess the impacts of atmospheric pressure and relative humidity on mortality in Guangzhou, China. Methods: This study included 213,737 registered deaths during 2003-2011 in Guangzhou, China. A quasi-Poisson regression with a distributed lag non-linear model was used to assess the effects of atmospheric pressure/relative humidity. Results: We found significant effect of low atmospheric pressure/relative humidity on mortality. There was a 1.79% (95% confidence interval: 0.38%-3.22%) increase in non-accidental mortality and a 2.27% (0.07%-4.51%) increase in cardiovascular mortality comparing the 5th and 25th percentile of atmospheric pressure. A 3.97% (0.67%-7.39%) increase in cardiovascular mortality was also observed comparing the 5th and 25th percentile of relative humidity. Women were more vulnerable to decrease in atmospheric pressure and relative humidity than men. Age and education attainment were also potential effect modifiers. Furthermore, low atmospheric pressure and relative humidity increased temperature-related mortality. Conclusion: Both low atmospheric pressure and relative humidity are important risk factors of mortality. Our findings would be helpful to develop health risk assessment and climate policy interventions that would better protect vulnerable subgroups of the population.

Original languageEnglish
Pages (from-to)917-925
Number of pages9
JournalBiomedical and Environmental Sciences
Volume27
Issue number12
DOIs
Publication statusPublished - 1 Dec 2014
Externally publishedYes

Keywords

  • Atmospheric pressure
  • Mortality
  • Relative humidity
  • Temperature

Cite this

Ou, Chun Quan ; Yang, Jun ; Ou, Qiao Qun ; Liu, Hua Zhang ; Lin, Guo Zhen ; Chen, Ping Yan ; Qian, Jun ; Guo, Yu Ming. / The impact of relative humidity and atmospheric pressure on mortality in Guangzhou, China. In: Biomedical and Environmental Sciences. 2014 ; Vol. 27, No. 12. pp. 917-925.
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abstract = "Objective: Although many studies have examined the effects of ambient temperatures on mortality, little evidence is on health impacts of atmospheric pressure and relative humidity. This study aimed to assess the impacts of atmospheric pressure and relative humidity on mortality in Guangzhou, China. Methods: This study included 213,737 registered deaths during 2003-2011 in Guangzhou, China. A quasi-Poisson regression with a distributed lag non-linear model was used to assess the effects of atmospheric pressure/relative humidity. Results: We found significant effect of low atmospheric pressure/relative humidity on mortality. There was a 1.79{\%} (95{\%} confidence interval: 0.38{\%}-3.22{\%}) increase in non-accidental mortality and a 2.27{\%} (0.07{\%}-4.51{\%}) increase in cardiovascular mortality comparing the 5th and 25th percentile of atmospheric pressure. A 3.97{\%} (0.67{\%}-7.39{\%}) increase in cardiovascular mortality was also observed comparing the 5th and 25th percentile of relative humidity. Women were more vulnerable to decrease in atmospheric pressure and relative humidity than men. Age and education attainment were also potential effect modifiers. Furthermore, low atmospheric pressure and relative humidity increased temperature-related mortality. Conclusion: Both low atmospheric pressure and relative humidity are important risk factors of mortality. Our findings would be helpful to develop health risk assessment and climate policy interventions that would better protect vulnerable subgroups of the population.",
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The impact of relative humidity and atmospheric pressure on mortality in Guangzhou, China. / Ou, Chun Quan; Yang, Jun; Ou, Qiao Qun; Liu, Hua Zhang; Lin, Guo Zhen; Chen, Ping Yan; Qian, Jun; Guo, Yu Ming.

In: Biomedical and Environmental Sciences, Vol. 27, No. 12, 01.12.2014, p. 917-925.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - The impact of relative humidity and atmospheric pressure on mortality in Guangzhou, China

AU - Ou, Chun Quan

AU - Yang, Jun

AU - Ou, Qiao Qun

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AU - Lin, Guo Zhen

AU - Chen, Ping Yan

AU - Qian, Jun

AU - Guo, Yu Ming

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N2 - Objective: Although many studies have examined the effects of ambient temperatures on mortality, little evidence is on health impacts of atmospheric pressure and relative humidity. This study aimed to assess the impacts of atmospheric pressure and relative humidity on mortality in Guangzhou, China. Methods: This study included 213,737 registered deaths during 2003-2011 in Guangzhou, China. A quasi-Poisson regression with a distributed lag non-linear model was used to assess the effects of atmospheric pressure/relative humidity. Results: We found significant effect of low atmospheric pressure/relative humidity on mortality. There was a 1.79% (95% confidence interval: 0.38%-3.22%) increase in non-accidental mortality and a 2.27% (0.07%-4.51%) increase in cardiovascular mortality comparing the 5th and 25th percentile of atmospheric pressure. A 3.97% (0.67%-7.39%) increase in cardiovascular mortality was also observed comparing the 5th and 25th percentile of relative humidity. Women were more vulnerable to decrease in atmospheric pressure and relative humidity than men. Age and education attainment were also potential effect modifiers. Furthermore, low atmospheric pressure and relative humidity increased temperature-related mortality. Conclusion: Both low atmospheric pressure and relative humidity are important risk factors of mortality. Our findings would be helpful to develop health risk assessment and climate policy interventions that would better protect vulnerable subgroups of the population.

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