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. 2016 May 11;11(5):e0155045.
doi: 10.1371/journal.pone.0155045. eCollection 2016.

High Summer Temperatures and Mortality in Estonia

Daniel Oudin Åström  1   2   3 , Christofer Åström  1   2 , Kaidi Rekker  1   4 , Ene Indermitte  1 , Hans Orru  1   2
Affiliations

High Summer Temperatures and Mortality in Estonia

Daniel Oudin Åström et al. PLoS One. .

Abstract

Background: On-going climate change is predicted to result in a growing number of extreme weather events-such as heat waves-throughout Europe. The effect of high temperatures and heat waves are already having an important impact on public health in terms of increased mortality, but studies from an Estonian setting are almost entirely missing. We investigated mortality in relation to high summer temperatures and the time course of mortality in a coastal and inland region of Estonia.

Methods: We collected daily mortality data and daily maximum temperature for a coastal and an inland region of Estonia. We applied a distributed lag non-linear model to investigate heat related mortality and the time course of mortality in Estonia.

Results: We found an immediate increase in mortality associated with temperatures exceeding the 75th percentile of summer maximum temperatures, corresponding to approximately 23°C. This increase lasted for a couple of days in both regions. The total effect of elevated temperatures was not lessened by significant mortality displacement.

Discussion: We observed significantly increased mortality in Estonia, both on a country level as well as for a coastal region and an inland region with a more continental climate. Heat related mortality was higher in the inland region as compared to the coastal region, however, no statistically significant differences were observed. The lower risks in coastal areas could be due to lower maximum temperatures and cooling effects of the sea, but also better socioeconomic condition. Our results suggest that region specific estimates of the impacts of temperature extremes on mortality are needed.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. The coastal and inland regions of Estonia, with the meteorological stations used in the current study.
Fig 2
Fig 2. The estimated RR of total mortality at the 90th percentile of daily maximum temperature for lags 0–10 for the coastal and inland region of Estonia.
Fig 3
Fig 3. The estimated cumulative RR of total mortality for the daily max temperature over lags 0–2 for the coastal and inland region.
Fig 4
Fig 4. The estimated cumulative RR of total mortality for the daily max temperature over lags 0–10 for the coastal and inland region.
See this image and copyright information in PMC

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References

    1. Field CB. Managing the risks of extreme events and disasters to advance climate change adaptation: special report of the intergovernmental panel on climate change: Cambridge University Press; 2012. - PubMed
    1. Michelozzi P, Accetta G, De Sario M, D'Ippoliti D, Marino C, Baccini M, et al. High temperature and hospitalizations for cardiovascular and respiratory causes in 12 European cities. American journal of respiratory and critical care medicine. 2009;179(5):383–9. 10.1164/rccm.200802-217OC - DOI - PubMed
    1. D'Ippoliti D, Michelozzi P, Marino C, de'Donato F, Menne B, Katsouyanni K, et al. Research The impact of heat waves on mortality in 9 European cities: results from the EuroHEAT project. 2010. - PMC - PubMed
    1. Guo Y, Gasparrini A, Armstrong B, Li S, Tawatsupa B, Tobias A, et al. Global variation in the effects of ambient temperature on mortality: a systematic evaluation. Epidemiology. 2014;25(6):781–9. 10.1097/EDE.0000000000000165 - DOI - PMC - PubMed
    1. de’Donato FK, Leone M, Scortichini M, De Sario M, Katsouyanni K, Lanki T, et al. Changes in the effect of heat on mortality in the last 20 years in nine European cities. Results from the PHASE project. International journal of environmental research and public health. 2015;12(12):15567–83. 10.3390/ijerph121215006 - DOI - PMC - PubMed

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