Copyright © 1981 by the European Society of Cardiology.
© 1981, by The European Society Of Cardiology
Electrocardiographic findings and their association with mortality in the Copenhagen City Heart Study
Medical Department B, Rigshopitalet copehnagen, Denmark
Received 24 November 1980; revised 16 February 1981; .
Dr E.Östör, Medical Department B-2011, Rigshopitalet, 9 Blegdamsvej, DK 2100 Copenhagen, Danmark
Abstract
In the Copenhagen City Heart Study 9348 men and 10 314 women, aged 20 or more, were examined. A resting 12 lead electrocardiogram was recorded in each subject. The prevalence of all electrocardiographic signs with the exception of axis deviation, high amplitude R wave, minor T wave abnormality, prolonged and short P(Q)R interval was very low below the age of 40 in men and below the age of 50 in women. Rates for Q-QS abnormalities, left axis deviation, ST depression and T wave abnormalities, premature beats, and atrial fibrillation increased with age, and the prevalence was higher for men than for women. In comparison with other European studies, the prevalence of major and minor electrocardiographic abnormalities of our study is high, similar to those found in Finland.
We found a strong association between total mortality and major ST depression and T wave abnormalities in both sexes. A similar strong correlation was observed between mortality and Q-QS and LBBB in men.
In conclusion, the electrocardiogram has an extremely limited value in population screening below the age of 50. The well-known correlation between electrocardiographic signs and ischaemic heart disease mortality was confirmed by our data in relation to total mortality.
Key Words: Cardiovascular epidemiology • prevalence of electrocardiographic signs • electrocardiogram • total mortality
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