Oesophageal acid exposure and DeMeester score measured 55 mm (conventional reflux) and 5 mm (short segment reflux) above the squamocolumnar junction
| % time pH <4 (Total) | % time pH <4 (Upright) | % time pH <4 (Supine) | DeMeester score | |
|---|---|---|---|---|
| Conventional reflux | 1.8% (0.8–4) | 2.3% (0.9–4.3) | 1.3% (0–6.1) | 8 (4–19) |
| Short segment reflux | 11.7% (2.4–36.3) | 12.7% (2.3–32.1) | 10.5% (1.2–42.9) | 45 (12–131) |
| p<0.001 | p<0.001 | p<0.001 | p<0.001 |