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New standards for electrocardiograms of adult males without evidence of cardiac hypertrophy


B. van Lingen
R. Palmhert

Abstract

A statistical analysis has been made of 214 adult male subjects, of whom 59 had not shown cardiac hypertrophy at autopsy, and cardiac hypertrophy had been excluded in the remainder by clinical and radiological study. The statistical analysis consisted of a stepwise linear regression analysis, in which the electrocardiographic deflections were the dependent variables, and age, electrical position of the hear:, height, weight and ponderal index were the independent variables. The normal limits were established by a combination of the stepwise linear regression equations and the percentile limits. Such an approach offers advantages over methods previously used to establish normal limits for the electrocardiogram.

S. Afr. Med. J., 48, 1413 (1974).

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eISSN: 2078-5135
print ISSN: 0256-9574