American Journal of Epidemiology Vol. 127, No. 5: 955-968
Copyright © 1988 by The Johns Hopkins University School of Hygiene and Public Health
research-article |
PREVALENCE AND CORRELATES OF VENTRICULAR PREMATURE BEATS DETECTED BY AMBULATORY ELECTROCARDIOGRAPHY IN WORKING POPULATIONS1
Reprint requests to Dr. Manfred S. Green, Occupational Health and Rehabilitation Institute at Loewenstein Hospital, P.O. Box 3, 43 100 Raanana, Israel
The associations of ventricular premature beats detected on a one-hour ambulatory electrocardiogram with demographic, behavioral, physiologic, and an-thropometric variables were examined in 2,331 factory workers aged 2069 years. Ventricular premature beats were more prevalent with increasing age and with abnormal resting electrocardiograms. From the age of 40, they were more common among males than among females. An association with ethnicity was observed, ventricular premature beats being most common among Israelis of European origin. In univariate analysis, resting heart rate was inversely associated with the presence of ventricular premature beats for females only. Ambulatory heart rate was positively associated with ventricular premature beats only among males. No associations with smoking habits or relative weight were found. Among males and females with normal electrocardiograms, systolic and diastolic blood pressures were significant correlates of ventricular premature beats in univariate analysis and after controlling for age, resting and ambulatory heart rates, and ethnic origin.
cardiovascular diseases; extrasystoles
1Cardiovascular Research Unit, Occupational Health and Rehabilitation Institute at Loewenstein Hospital, Raanana, Israel