Frequency of high reflux gastritis scores (RGS >10) and high bile reflux indices (BRI >14) in the three clinical groups (patients with non-ulcer dyspepsia (NUD), uncomplicated gastro-oesophageal reflux disease (GORD), and Barrett's oesophagus)
| Clinical group | n | RGS ⩽10 | RGS >10 (%) | BRI ⩽14 | BRI >14 (%) |
| NUD | 50 | 40 | 10 (25%) | 46 | 4 (8%) |
| GORD | 61 | 49 | 12 (20%) | 52 | 9 (14.8%) |
| Barrett's | 100 | 79 | 21 (21%) | 71 | 29 (29%) |
There was no significant difference in the distribution of RGSs between groups (χ2=0.05; NS) but the distribution of BRIs was highly significantly different (χ2=10.65; p<0.005).