Prevalence of squamous mucosal histological abnormalities
| Negative pH score | Uncomplicated reflux disease | Complicated reflux disease | |
|---|---|---|---|
| Basal cell hyperplasia (n=61) | |||
| None | 10 (43%) | 10 (56%) | 8 (40%) |
| Mild | 10 (43%) | 6 (33%) | 6 (30%) |
| Moderate | 1 (4%) | 1 (6%) | 3 (15%) |
| Severe | 2 (5%) | 1 (6%) | 3 (15%) |
| Total | 23 | 18 | 20 |
| Papillary zone lengthening (n=51) | |||
| Absent | 13 (72%) | 14 (87%) | 12 (71%) |
| Present | 5 (28%) | 2 (13%) | 5 (29%) |
| Total | 18 | 16 | 17 |