Skip to main content

Table 5 Variability according to the three one-minute methods compared with the values obtained during to the 24 h analysis with and without impedance events

From: Esophageal impedance baseline according to different time intervals

   Method 1 (%) Method 2 (%) Method 3 (%)
   Maximum Minimum Maximum Minimum Maximum Minimum
Channel 1 24 h with IE 5.47 −44.10 5.35 −45.51 9.19 −40.35
  24 h without IE 8.76 −9.43 6.01 −10.88 16.05 −14.65
Channel 2 24 h with IE 5.34 −5.50 5.77 −9.35 15.60 −9.50
  24 h without IE 9.74 −8.15 10.18 −12.05 20.43 −16.65
Channel 3 24 h with IE 8.86 −11.42 11.62 −15.49 21.43 −9.13
  24 h without IE 6.58 −16.58 14.52 −13.11 24.56 −17.58
Channel 4 24 h with IE 11.07 −11.36 15.17 −17.72 20.85 −38.01
  24 h without IE 11.53 −17.12 21.69 −15.09 26.32 −33.09
Channel 5 24 h with IE 11.87 −12.79 14.14 −10.24 18.52 −24.13
  24 h without IE 11.75 −17.09 18.36 −17.61 21.92 −28.38
Channel 6 24 h with IE 7.14 −6.13 6.50 −9.87 13.53 −24.49
  24 h without IE 11.90 −14.44 8.63 −21.17 22.82 −28.01
  1. Variability expresses the difference in the impedance baseline obtained with one method. Negative values mean that the value obtained with the method is lower than that obtained in the 24 h recording. IE: impedance events.