Table 4

Correlation between the appearance of ECG changes with stress and long axis abnormalities in the patient group

Both +ve ECG +veLong axis +veBoth −vep value4-150
ST shift vexcursion13356NS
ST shift v peak lengthening rate142111NS
QRS broadening vexcursion16425< 0.02
QRS v peak lengthening rate18261NS
QTc prolongation vexcursion13644NS
QTc v peak lengthening rate19143< 0.02
  • 4-150 χ2 probability test.