Table 2

The mean age at the time of the first (ECG 1) and last (ECG 2) available ECG recordings and the respective median PR intervals and QRS complex durations in ECG

Mean ageSDMedian PR (ms)Median QRS (ms)
ECG 139.4 (n=57)12.3200 (IQR=107)
(IQR=17) (n=37)
ECG 245.7 (n=37)12.3226
  • PR, PR interval in ECG; QRS, QRS complex duration in ECG.