Table 1 Baseline MII results
From: Discounting the duration of bolus exposure in impedance testing underestimates acid reflux
Parameters | Median | Range (Min, Max) | |
|---|---|---|---|
Duration of analysis | Duration of analysis total (hours:min) | 21:22 | (20:01, 24:22) |
Duration of analysis upright (hours:min) | 12:17 | (2:35, 18:25) | |
Duration of analysis recumbent (hours:min) | 8:59 | (2:50, 20:47) | |
Median gastric pH | 2.2 | (1.6,3.7)a | |
Esophageal acid exposure | Percentage time total ph < 4 (%) | 1.6 | (0,17.3) |
Percentage time upright ph < 4 (%) | 1.9 | (0,24.4) | |
Percentage time recumbent ph < 4 (%) | 0.8 | (0,23.3) | |
Episodes Over 5 min | 0.0 | (0,11.1) | |
Longest Episode/min | 4.8 | (1,96.5) | |
Total Episodes | 27.2 | (1.1, 122.7) | |
Demeester score | 5.8 | (0.8,59.1) | |
Impedance | Baseline impedance/Ω | 1614 | (588,5420) |
no. of impedance events (total) | 41 | (6,162) | |
no. of impedance events (upright) | 37 | (2,149) | |
no. of impedance events (recumbent) | 5 | (0,45) | |
longest impedance detected episode/min | 3.4 | (0.2,161) | |
Acid reflux | 21 | (0,88) | |
Non-acid reflux | 17 | (1,159) | |
Bolus exposure (%) | 1.3 | (0.1, 21.2) |