Table 1

Electrocardiographic findings related to left ventricular systolic function. Figures are numbers of patients

Electrocardiographic findingsImpaired left ventricular systolic functionPreserved left ventricular systolic functionTotal
Abnormal90169259
Normal+6269275
Total96438534
  • Sensitivity 90/96=94%; specificity 269/438=61%; positive predictive value 90/259=35%; negative predictive value 269/275=98%.

  • +Normal or minor abnormality (atrial enlargement, bradycardia, tachycardia, broadening of QRS complex, poor R wave progression, right axis deviation, myocardial ischaemia, first degree atrioventricular block, nonspecific ST-T wave changes).