Fig. 2. Trend of the electrocardiogram indexes according to age: age versus heart rate in the patients (A) and the controls (B); age versus the prevalence of fQRS in the patients (C) and the controls (D); age versus QTc in the patients (E) and the controls (F); age versus cTpTe in the patients (G) and the controls (H); age versus TpTe/QT ratio in the patients (I) and the controls (J). TpTe/QT, Tpeak-to-Tend/QT; QTc, corrected QT interval; cTpTe, corrected Tpeak-to-Tend interval; fQRS, fragmented QRS.
