Case-fatality rates for myocardial infarction declined in Denmark and Sweden during 1987-1999.
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
OBJECTIVE: To evaluate trends in prognosis after acute myocardial infarction (AMI) between Denmark and Sweden using routinely collected data and different case-fatality measures. STUDY DESIGN AND SETTING: We compared three case-fatality measures during 1987-1999 using national registries in Denmark and Sweden, and extended these measures with underlying deaths of ischemic heart disease and sudden deaths of unknown cause. RESULTS: Changed coding practice distorted trends of case fatality rates during the day of the event. In general, Denmark had higher case-fatality rates, but trends in hospital-based rates were very similar, except for men 35-64 years old; Denmark declined more steeply. Short- and long-term prognosis improved considerably: the odds ratios for case fatality during days 1-28 for 1999 vs. 1987 were 0.48 among men in Denmark (women 0.58) and 0.53 among men in Sweden (women 0.55) and the odds ratios for case fatality during days 29-365 for 1999 vs. 1987 were 0.56 among men in Denmark (women 0.65) and 0.66 among men in Sweden (women 0.67). CONCLUSION: Short- and long-term prognosis improved considerably during 1987-1999 in Denmark and Sweden. Case fatality during the day of the event is epidemiologically important, but less certain than case-fatality measures defined after the day of the event when comparing countries.
Udgivelsesdato: 2004-Jun
Udgivelsesdato: 2004-Jun
Originalsprog | Engelsk |
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Tidsskrift | Journal of Clinical Epidemiology |
Vol/bind | 57 |
Udgave nummer | 6 |
Sider (fra-til) | 638-46 |
Antal sider | 8 |
ISSN | 0895-4356 |
DOI | |
Status | Udgivet - 2004 |
ID: 3439676