The meteorological sensitivity of ischaemic heart disease mortality events in Birmingham, UK |
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Authors: | McGregor G R |
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Institution: | (1) School of Geography and Environmental Sciences, The University of Birmingham, Birmingham B15 2TT, UK e-mail: G.R.McGregor@bham.ac.uk, GB |
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Abstract: | Winter ischaemic heart disease (IHD) mortality events (ME) were identified in order to establish their degree of meteorological
sensitivity. Sensitivity was evaluated using regression of surface meteorological and large-scale atmospheric circulation
variables on daily mortality for each mortality event. Critical meteorological variables affecting IHD mortality appear to
be local surface dry-bulb and dew-point temperature and large-scale southerly and westerly wind components, atmospheric pressure
and vorticity. The rate of change and departure from normal conditions of these variables appear to be especially important
for engendering IHD mortality events. Associated with IHD mortality are two broad types of weather conditions: (1) blustery
westerly flows and rapidly changing weather from the west and (2) climatologically strong northeasterly to southeasterly flows
of cold air, which bring rapidly changing and anomalous thermal conditions to the study area. The general atmospheric circulation
patterns that produce these conditions are identified and the implications of results for weather and health studies are discussed.
Received: 24 October 2000 / Revised: 16 April 2001 / Accepted: 18 April 2001 |
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Keywords: | Weather/health relationships Ischaemic heart disease Mortality Extreme events Meteorological sensitivity Atmospheric circulation |
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