Document Detail


Modelling seasonal and weather dependency of cardiac arrests using the covariate order method.
MedLine Citation:
PMID:  17195279     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A data set concerning cardiac arrests treated by the Emergency Medical Service in Trondheim during a nine year period is analysed. The relationship between the occurrence of cardiac arrest and covariates related to weather and season is examined. The covariate order method is used in the analysis of the data. It is explained how this method can be extended to recurrent event data, and the practical usefulness and flexibility of the method is demonstrated in these analyses. In the analyses a significant relationship between outdoor air temperature, or factors closely related to outdoor air temperature, and the occurrence of cardiac arrest is found. The incidence of cardiac arrest decreases with increasing temperature. Further a significant effect of snowfall is also found, with increased intensity of cardiac arrest on days with snowfall. A more borderline significant effect of precipitation is also identified.
Authors:
Jan Terje Kvaløy; Eirik Skogvoll
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Statistics in medicine     Volume:  26     ISSN:  0277-6715     ISO Abbreviation:  Stat Med     Publication Date:  2007 Jul 
Date Detail:
Created Date:  2007-06-18     Completed Date:  2007-08-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8215016     Medline TA:  Stat Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  3315-29     Citation Subset:  IM    
Affiliation:
Department of Mathematics and Natural Sciences, University of Stavanger, Stavanger, Norway. jan.t.kvaloy@uis.no
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MeSH Terms
Descriptor/Qualifier:
Emergency Service, Hospital
Heart Arrest / epidemiology*
Humans
Norway / epidemiology
Proportional Hazards Models
Seasons*
Weather*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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