Histological bile reflux indices according to the clinicopathological subgroups (patients with uncomplicated gastro-oesophageal reflux disease (GORD) and Barrett's oesophagus)
| n | Median | Range | Mean | 95% CI | |
| GORD | |||||
| Mild/moderate | 41 | 11 | 0–24 | 10.1 | 8.0–12.1 |
| Severe | 20 | 11 | 4–18 | 10.0 | 8.0–12.0 |
| Barrett's | |||||
| Short segment3-150 | 42 | 11 | 0–25 | 12.1 | 10.4–14.4 |
| Long segment | 58 | 12.5 | 0–27 | 12.8 | 11.1–14.5 |
↵3-150 Short segment, <3 cm of columnar mucosa in the tubular oesophagus.