Article

Hospital discharge register data in the assessment of trends in acute myocardial infarction. FINMONICA AMI Register Study Team.

National Public Health Institute, Department of Epidemiology and Health Promotion, Helsinki, Finland.
Annals of Medicine (impact factor: 3.52). 11/1995; 27(5):547-54.
Source: PubMed

ABSTRACT We evaluated the reliability hospital discharge register data in the assessment of acute myocardial infarction trends. In the FINMONICA study areas, trends in age standarized attack rates for the years 1983-90 were calculated independently from two sources: the nationwide Finnish hospital discharge register and the FINMONICA acute myocardial infarction register. The trends were compared by a statistical regression model. The trends obtained from the hospital discharge register were very similar to the trends obtained from the FINMONICA acute myocardial infarction register. The attack rates differed significantly, however, and the change in the International Classification of Diseases version from version 8 to version 9 brought on a change in the attack rates obtained from the hospital discharge register. Thus, hospital discharge register data can be used to assess acute myocardial infarction trends in the community. However, modifications of the International Classification of Diseases codes (new versions of the classification) and changes in the clinical use of the codes for coronary heart disease can have an impact on the attack rates obtained from the hospital discharge register, and the reliability of the hospital discharge register data should be regularly assessed.

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Keywords

acute myocardial infarction trends
 
age standarized attack rates
 
attack rates
 
clinical use
 
codes
 
coronary heart disease
 
Diseases codes
 
Diseases version
 
FINMONICA acute myocardial infarction
 
FINMONICA study areas
 
hospital discharge
 
International Classification
 
nationwide Finnish hospital discharge
 
new versions
 
reliability
 
reliability hospital discharge
 
statistical regression model
 
version 8
 
version 9
 

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