The frequency of arteriosclerotic and hypertensive heart disease among ostensibly healthy working populations in finland

摘要: Abstract An attempt was made to apply electrocardiography (ECG) as a tool in epidemiologic investigation. Five geographically and occupationally different groups comprising total of 985 ostensibly healthy Finnish men the age range from 20 59 years were examined. Strictly defined standardized techniques criteria used ECG, history, clinical examination. Substantial differences occurred frequency ECG abnormalities among with 28.9 per cent Helsinki Fire Brigade 13.1 lumberjacks East Finland. The essentially due left ventricular preponderance, S-T depressions, T wave abnormalities. coronary involvement varied 8.9 4.0 cent, significant difference between eastern (8.9 cent) western (4.1 rural men. largely angina pectoris category possible myocardial infarction. Hypertension also showed differences, being 37.2 11.4 groups. Correspondingly, hypertensive heart disease 9.3 firemen 0 lumberjacks. High voltage R waves compatible hypertrophy same hypertension, moderately elevated or normal blood pressure. It is concluded that population may be described aid electrocardiography. causes observed are discussed.