Breakdown of gastro-oesophageal symptom rating scale (GSRS) scores overall and for reflux symptoms alone for the pretreatment group versus the other cohort groups
| Total GSRS Mean (SD) | Reflux score Mean (SD) | Coefficient (95% CI) | Pretreatment DBO versus p value | |
| Pretreatment DBO | 5.96 (5.4) 0–23 | 0.9 (1.3) 0–6 | n/a | n/a |
| NDBO | 6.95 (6.1) Range 0–29 | 0.95 (1.33) Range 0–6 | −0.92 (−1.52 to 1.33) | 0.900 |
| Retro DBO | 6.43 (5.73) 0–22 | 0.7 (0.9) 0–3 | 0.77 (−1.19 to 2.73) | 0.441 |
| GORD | 10.42 (7.41) 0–35 | 1.81 (1.75) 0–6 | 1.88 (0.22 to 3.54) | 0.027* |
| Colonic polyps | 5.29 (5.4) 0–25 | 0.49 (0.96) 0–5 | −1.47 (−3.04 to 0.11) | 0.068 |
| Healthy | 1.96 (2.48) 0–12 | 0.25 (0.53) 0–2 | −5.93 (−8.14 to −3.72) | <0.001* |
*, Denotes statistical significance; DBO, dysplastic Barrett’s oesophagus; GORD, gastroesophageal reflux disease; GSRS, Gastro-oesophageal Symptom Rating Scale; NDBO, non-dysplastic Barrett’s oesophagus.