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The frontal plane QRS-T [f(QRS-T)] angle is an easy marker of myocardial repolarization and was associated with adverse cardiovascular outcomes like prehypertension (PHT). This study was aimed to investigate to evaluate the f(QRS-T) angle in patients with PHT. We measured f(QRS-T) angle of 70 subjects with PHT, 109 patients with hypertension (HT), and 102 normotensive healthy volunteers. The f(QRS-T) angle was calculated from 12-lead electrocardiography. The f(QRS-T) angle was significantly higher in the HT and PHT groups as compared to