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Published in: BMC Public Health 1/2013

Open Access 01-12-2013 | Research article

Health impacts of the July 2010 heat wave in Québec, Canada

Authors: Ray Bustinza, Germain Lebel, Pierre Gosselin, Diane Bélanger, Fateh Chebana

Published in: BMC Public Health | Issue 1/2013

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Abstract

Background

One of the consequences of climate change is the increased frequency and intensity of heat waves which can cause serious health impacts. In Québec, July 2010 was marked by an unprecedented heat wave in recent history. The purpose of this study is to estimate certain health impacts of this heat wave.

Methods

The crude daily death and emergency department admission rates during the heat wave were analyzed in relation to comparison periods using 95% confidence intervals.

Results

During the heat wave, the crude daily rates showed a significant increase of 33% for deaths and 4% for emergency department admissions in relation to comparison periods. No displacement of mortality was observed over a 60-day horizon.

Conclusions

The all-cause death indicator seems to be sufficiently sensitive and specific for surveillance of exceedences of critical temperature thresholds, which makes it useful for a heat health-watch system. Many public health actions combined with the increased use of air conditioning in recent decades have contributed to a marked reduction in mortality during heat waves. However, an important residual risk remains, which needs to be more vigorously addressed by public health authorities in light of the expected increase in the frequency and severity of heat waves and the aging of the population.
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Metadata
Title
Health impacts of the July 2010 heat wave in Québec, Canada
Authors
Ray Bustinza
Germain Lebel
Pierre Gosselin
Diane Bélanger
Fateh Chebana
Publication date
01-12-2013
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2013
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/1471-2458-13-56

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