Key result
Observer interpretation of ECGs shows error and variation in an industrial employee population.
Why the study?
Observer error and variation in the interpretation of electrocardiograms in epidemiological studies of coronary heart disease were concerns due to impracticability of multiple readers for all tracings.
Population
56 electrocardiographic tracings from an age-stratified random sample of employees of a large industrial concern in Dublin
Comparison
Interpretation of electrocardiograms by different observers
Design
Observational study using a 25 percent random sample of tracings
Authors
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Observer variation in ECGs warrants diagnostic caution; cross-sectional data leaves open its magnitude and mitigation in current practice.
Observational (n=56)
R. M. Acheson (1960) conducted an observational in Coronary Heart Disease (n=56). Electrocardiogram interpretation was evaluated on Observer error and variation. Observer error and variation in the interpretation of 56 electrocardiograms from an industrial employee population were evaluated, though quantitative results are not reported in the abstract.
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