Table 2.
Data from the diagnostic ability of white light endoscopy and acetic acid indigocarmine mixture-chromoendoscopy
| Parameters | Sensitivity | Specificity | Accuracy |
| Tumor size (≥ 2 cm) | 47.8%a | 77.4% | 64.8% |
| Surface color in WLE (normochronic or reddish) | 56.5%a | 74.2% | 66.7% |
| Macroscopic appearance (depressed) | 21.7%b | 83.9% | 57.4% |
| Reddish change in AIM-CE | 87.0% | 67.7% | 75.9% |
a
P < 0.05,
b
P < 0.01 vs Reddish change in AIM-CE using McNemar’s test. WLE: White light endoscopy; AIM: Acetic acid indigocarmine mixture; CE: Chromoendoscopy.