Table 3

Age standardised3-150 prevalences of initial ECG findings: the BIRNH study

Men (n = 5208)Women (n = 4746)
Any coded ECG finding31.9% (1687)26.3% (1230)
Major ECG findings3.7% (217)3.1% (138)
Minor ECG findings15.2% (830)13.2% (615)
Only minor ECG findings14.1% (763)12.1% (565)
Ischaemic ECG findings7.8% (445)11.1% (516)
ST depression1.6% (97)2.7% (124)
Abnormal T wave6.1% (345)9.6% (449)
Arrhythmias6.2% (326)4.7% (222)
Bundle branch blocks1.4% (79)0.8% (33)
Left ventricular hypertrophy0.8% (42)0.5% (21)
Left axis deviation5.0% (282)2.9% (132)
  • 3-150 Using the total Belgian population from 1982 as reference.