Chromoendoscopy of gastric adenoma using an acetic acid indigocarmine mixture

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%

^aP < 0.05,

^bP < 0.01 vs Reddish change in AIM-CE using McNemar’s test. WLE: White light endoscopy; AIM: Acetic acid indigocarmine mixture; CE: Chromoendoscopy.