Copyright © 1982 by the European Society of Cardiology.
© 1982 by The European Society of Cardiology
Incidence and prognosis of acute myocardial infarction among men below age 40 in Göteborg, Sweden
Department of Medicine, University of Göteborg, Östra Hospital S-416 85 Göteborg, Sweden
Received 4 March 1981; revised 16 July 1981; .
Abstract
All cases of acute myocardial infarction occurring in the community of Goteborg in certain age groups have been registered in an Infarction Register for more than a decade. All survivors have systematically been followed-up at a special Postmyocardial Infarction Clinic. Sixty-one cases of myocardial infarction below the age of 40 were registered through the years 196878. Fifteen men died either outside hospital or in hospital in the acute stage. The annual incidence of a first myocardial infarction was low 6.1 and 29.4 per 100 000 males in the age groups 3034 years and 3539 years, respectively. However, the incidence among Finnish immigrants was significantly higher than among other groups, the figures being similar to those reported from Helsinki. Compared with older patients, the survivors below the age of 40 seemed to have larger and more complicated infarcts.
During an II-year follow-up the mortality was significantly lower among patients below the age of 40 than in older age groups. The incidence of non-fatal reinfarctions and the prevalence of angina pectoris did not differ between the groups. The non-fatal reinfarctions could not be predicted from primary or secondary risk factors.
Key Words: Myocardial infarction young males incidence survival non-fatal reinfarctions
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