TABLE 1

Dynamics of ECG parameters in patient and control groups

ECG variablesPatientsp-valueControlsp-value
Subjects n14318
Exercise QT-resting QT ms−34±29<0.001−91±34<0.001
Exercise QTc-resting QTc ms5±340.05326±25<0.001
Exercise QRS-resting QRS ms1.7±13.10.1280.2±6.20.881
Exercise PR-resting PR ms1 (−63–100)0.057−31(−104–0)<0.001
Exercise RR-resting RR ms−150.5±100.6<0.001−428.9±168.9<0.001
  • Data are presented as mean±sd or median (range). ECG: electrocardiogram; QTc: heart rate-corrected QT interval.