Mortality and morbidity from myocardial infarction among men aged 30—64 within different social-, professional- and language-groups in the market town of Espoo in 1965

The authors have investigated the mortality and morbidity from myocardial infarction among men aged 30—64 in the market town of Espoo in 1965, in which investigation special attention has been drawn to the distribution of the material in social-, professional- and language-groups. The authors have had at their disposal exact information about the structure of the population, since in this region a census of population was made in the same year. The material consists of 76 patients, 33 of which died and 43 of which survived. Fourty-nine were hospitalized while 27 died a sudden death. The mortality of the material was 2.12 per thousand, the morbidity was 4.88 per thousand and the lethality was 43.4 per cent. Regarding the social-groups, the mortality as well as the morbidity was higher in social-group III—IV than in social-group I—II (the mortality was 2.49 and 1.66 per thousand, respectively, and the morbidity was 5.11 and 4.70 per thousand, respectively). Regarding the professional-groups the material has been divided in persons with intellectual work and persons with physical work, and the basis of the population has been men aged 25—64 because these limits were settled during the census of population. Here, too, a higher mortality as well as morbidity occurred among patients with physical work compared with patients with intellectual work (the mortality was 2.22 and 1.29 per thousand, respectively, and the morbidity was 4.95 and 3.35 per thousand, respectively). In the market town of Espoo there are Finnish as well as Swedish speaking people (81.1 per cent Finnish speaking). The mortality in both groups was exactly the same (2.07 per thousand) while the morbidity in the Swedish speaking group was higher than in the Finnish speaking group (6.50 and 4.38 per thousand, respectively).