Universal thermal climate index (UTCI) applied to determine thresholds for temperature-related mortality

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UDC: 
504.75
DOI: 
10.21668/health.risk/2019.3.10.eng
Authors: 

N.V. Shartova1, D.A. Shaposhnikov2, P.I. Konstantinov1, B.A. Revich2

Organization: 

1Moscow State University, 12 Bldg., 1 Leninskie Gory, Moscow, 119991, Russian Federation
2The Institute of Economic Forecasting of the Russian Academy of Sciences, 47 Nakhimovskii Ave., Moscow, 117418, Russian Federation

Abstract: 

Our research goal was to examine a response in mortality among population in Arkhangelsk caused by exposure to high and low temperatures. We determined the best available mortality predictor out of air temperature and Universal Thermal Climate Index that characterizes how people feel temperature and detected threshold temperatures depending on sex, age, and cause of death; under exposure to such temperatures there was a statistically authentic increase in mortality.
We analyzed data on daily mortality among population and meteorological data collected in 1999–2016. Relative pre-ciseness in calculating attributive fractions of additional mortality during all hot and cold days was taken as a numeric criterion for selecting the best predictor. All the calculations were accomplished basing on Poisson’s regression model taking into account a non-linear dependence between mortality and weather with a distributed lag up to 21 days long.
Although people in Arkhangelsk live in a climate with cold summer and moderately cold winter, we determined attributive fractions of mortality both for cold and heat. In summer high temperatures at night have greater effects on mortality than average daily ones. Differences in temperature-related mortality depend not only on age (people who are older than 65 are more vulnerable in this respect) but also on sex. We detected lower threshold heat temperatures for males as well as greater increase in mortality among them caused by exposure to cold. It is advisable to use different predictors to obtain the maximum precise characteristics for heat and cold stress. We recommend applying UTCI to determine threshold temperatures and additional mortality.

Keywords: 
heat waves, cold waves, mortality, population, circulatory organs diseases, cerebrovascular diseases, respiratory organs diseases, Universal Thermal Climate Index (UTCI), Arkhangelsk
Shartova N.V., Shaposhnikov D.A., Konstantinov P.I., Revich B.A. Universal thermal climate index (UTCI) applied to determine thresholds for temperature-related mortality. Health Risk Analysis, 2019, no. 3, pp. 83–93. DOI: 10.21668/health.risk/2019.3.10.eng
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Received: 
13.08.2019
Accepted: 
10.09.2019
Published: 
30.09.2019

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