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      Mortality from cold waves in Castile--La Mancha, Spain.

      The Science of the Total Environment
      Cold Temperature, adverse effects, Environmental Monitoring, Humans, Mortality, Seasons, Spain, Weather

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          Abstract

          As is known, the effects of extreme temperatures on mortality are characterised by an annual periodicity, with a rise centred in the winter months. The most recent epidemiological studies show that mortality caused by cold waves is, in many cases, comparable to that caused by the severest heat waves. This study sought to quantify the rise in mortality due to extreme cold and the factors that determine the relationship between these variables in Castile-La Mancha (Spain). We examined the effect of extreme winter temperature on daily non accidental cause mortality in Castile - La Mancha from 1975 to 2003, for all ages. Quantitative analyses were performed using ARIMA models, with other covariates, such as influenza, pressure trends, relative humidity, and cold wave duration and chronological number. There were two mortality peaks: a short-term peak (with a lag of 3 to 7 days); and a longer term peak (of under two weeks). Excess mortality during cold waves was around 10% per degree centigrade below the threshold temperature for all the provinces except Guadalajara, where an increase of only 4.61% was detected. Mortality increased in response to rises in cold-wave duration and relative humidity. Cold waves occurring at the end of the "winter" season caused the greatest mortality. This study confirms that daily mortality in Castile - La Mancha increases during cold waves. Efficient cold-wave prevention plans must therefore be implemented. Such plans should be based on in-depth knowledge of the causes that underlie and modulate the relationship between low temperatures and health effects. Copyright © 2010 Elsevier B.V. All rights reserved.

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          Author and article information

          Journal
          20833411
          10.1016/j.scitotenv.2010.07.086

          Chemistry
          Cold Temperature,adverse effects,Environmental Monitoring,Humans,Mortality,Seasons,Spain,Weather
          Chemistry
          Cold Temperature, adverse effects, Environmental Monitoring, Humans, Mortality, Seasons, Spain, Weather

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