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Characteristics factors of the patients n (%)
| Variable | PDT (n = 33) | RFA (n = 53) |
| Age (yr) | ||
| Mean ± SD | 70.7 ± 12.2 | 65.4 ± 12.7 |
| Range | 49-80 | 54-80 |
| Sex | ||
| Female | 3 (9) | 14 (26) |
| Male | 30 (91) | 39 (74) |
| Body-mass index | ||
| Mean ± SE | 27.8 ± 0.7 | 31.7 ± 1.3 |
| Range | 21-38 | 23-47 |
| Length of Barrett's esophagus (cm) | ||
| Mean ± SD | 5.4 ± 3.2 | 5.7 ± 3.2 |
| Range | 1.0-8.0 | 1.0-9.0 |
PDT: Photodynamic therapy; RFA: Radiofrequency ablation.
