| Reflux that could only be attributed to the acid pocket | Reflux events of undetermined origin | p Value | |
| Median nadir pH (range) | 1.99 (1.18–3.77) | 1.58 (0.69–3) | <0.005 |
| Median duration of reflux events | 9.8 s (3.1–128.5) | 17.7 s (3.1–384.1) | <0.05 |
| Percentage of reflux events recorded by the electrode | |||
| 52.4% | 38% | |
| 28.6% | 31% | |
| 19% | 31% | |
| above the squamocolumnar junction |