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Association between the detection rates and the length of unstained lesions in chromoendoscopy group.
| Dysplasia (%) | |||||
|---|---|---|---|---|---|
| Groups | No | Mild | Moderate | Severe/early carcinoma | Total |
| 0.5–1.0 cm | 76 | 4 (5.3) | 0 (0) | 0 (0) | 4 (5.3) |
| ≥1.0 cm | 137 | 27 (19.7) | 10 (7.3) | 14 (10.2) | 51 (37.2) |
| P | 0.04 | 0.22 | 0.04 | <0.001 | |
