Table 1

Signal quality indices of two patients’ recordings

Signal quality indexNumber of 5 min segments
n=312*
Kurtosis†−0.82 (−0.95, −0.63)
Skewness†0.27 (0.13, 0.57)
Entropy†8.54 (7.85, 8.96)
Signal to noise ratio†2.09 (1.99, 2.21)
Signal classification
Acceptable292 (94)
Non-acceptable20 (6.4)

  • *Statistics presented: median (IQR) or n (%).

  • †Definitions as described in Elgendi.10