SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:DiVA.org:umu-163718"
 

Search: onr:"swepub:oai:DiVA.org:umu-163718" > The Role of Humidit...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist
  • Armstrong, Ben (author)

The Role of Humidity in Associations of High Temperature with Mortality : A Multicountry, Multicity Study

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • The National Institute of Environmental Health Sciences,2019
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:umu-163718
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-163718URI
  • https://doi.org/10.1289/EHP5430DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Background: There is strong experimental evidence that physiologic stress from high temperatures is greater if humidity is higher. However, heat indices developed to allow for this have not consistently predicted mortality better than dry-bulb temperature.Objectives: We aimed to clarify the potential contribution of humidity an addition to temperature in predicting daily mortality in summer by using a large multicountry dataset.Methods: In 445 cities in 24 countries, we fit a time-series regression model for summer mortality with a distributed lag nonlinear model (DLNM) for temperature (up to lag 3) and supplemented this with a range of terms for relative humidity (RH) and its interaction with temperature. City-specific associations were summarized using meta-analytic techniques.Results: Adding a linear term for RH to the temperature term improved fit slightly, with an increase of 23% in RH (the 99th percentile anomaly) associated with a 1.1% [95% confidence interval (CI): 0.8, 1.3] decrease in mortality. Allowing curvature in the RH term or adding terms for interaction of RH with temperature did not improve the model fit. The humidity-related decreased risk was made up of a positive coefficient at lag 0 outweighed by negative coefficients at lags of 1–3 d. Key results were broadly robust to small model changes and replacing RH with absolute measures of humidity. Replacing temperature with apparent temperature, a metric combining humidity and temperature, reduced goodness of fit slightly.Discussion:The absence of a positive association of humidity with mortality in summer in this large multinational study is counter to expectations from physiologic studies, though consistent with previous epidemiologic studies finding little evidence for improved prediction by heat indices. The result that there was a small negative average association of humidity with mortality should be interpreted cautiously; the lag structure has unclear interpretation and suggests the need for future work to clarify.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Sera, Francesco (author)
  • Vicedo-Cabrera, Ana Maria (author)
  • Abrutzky, Rosana (author)
  • Oudin Åström, DanielUmeå universitet,Avdelningen för hållbar hälsa(Swepub:umu)daas0014 (author)
  • Bell, Michelle L (author)
  • Chen, Bing-Yu (author)
  • de Sousa Zanotti Stagliorio Coelho, Micheline (author)
  • Correa, Patricia Matus (author)
  • Dang, Tran Ngoc (author)
  • Diaz, Magali Hurtado (author)
  • Dung, Do Van (author)
  • Forsberg, BertilUmeå universitet,Avdelningen för hållbar hälsa(Swepub:umu)befo0001 (author)
  • Goodman, Patrick (author)
  • Guo, Yue-Liang Leon (author)
  • Guo, Yuming (author)
  • Hashizume, Masahiro (author)
  • Honda, Yasushi (author)
  • Indermitte, Ene (author)
  • Íñiguez, Carmen (author)
  • Kan, Haidong (author)
  • Kim, Ho (author)
  • Kyselý, Jan (author)
  • Lavigne, Eric (author)
  • Michelozzi, Paola (author)
  • Orru, HansDepartment of Family Medicine and Public Health, University of Tartu, Tartu, Estonia. (author)
  • Ortega, Nicolás Valdés (author)
  • Pascal, Mathilde (author)
  • Ragettli, Martina S (author)
  • Saldiva, Paulo Hilario Nascimento (author)
  • Schwartz, Joel (author)
  • Scortichini, Matteo (author)
  • Seposo, Xerxes (author)
  • Tobias, Aurelio (author)
  • Tong, Shilu (author)
  • Urban, Aleš (author)
  • De la Cruz Valencia, César (author)
  • Zanobetti, Antonella (author)
  • Zeka, Ariana (author)
  • Gasparrini, Antonio (author)
  • Umeå universitetAvdelningen för hållbar hälsa (creator_code:org_t)

Related titles

  • In:Journal of Environmental Health Perspectives: The National Institute of Environmental Health Sciences127:90091-67651552-9924

Internet link

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view