Demographics and Barrett's segment characteristics
| N | 50 |
| Mean age (years) | 73.5 (range 46–83) |
| Gender (M/F) | 42/8 |
| Barrett's type | |
| Short segment | 4 (8%) |
| Long segment | 46 (92%) |
| Median Barrett's length (cm) | 6 (range 1–16) |
| Visible lesions before RFA | |
| Yes | 12 (24%) |
| No | 38 (76%) |
| Initial histological diagnosis | |
| LGD | 2 |
| HGD | 34 |
| IMC | 13 |
| Treatment | |
| RFA | 11 |
| EMR+RFA | 38 |
| Surgery+RFA | 1 |
EMR, endoscopic mucosal resection; HGD, high-grade dysplasia; IMC, intramucosal cancer; LGD, low-grade dysplasia; RFA, radiofrequency ablation.