Magnifying endoscopy for the diagnosis of specialized intestinal metaplasia in short-segment Barrett’s esophagus

Table 2 Relationship between specialized intestinal metaplasia and variables

Variables	SIM (+)	SIM (-)	Total
Reflux esophagitis	2	9	11
No-Reflux esophagitis	1	14	15
Total1	3	23	26
Villous	3	2	5
Non-villous	0	21	21
Total2	3	23	26
MB stain	3	9	12
Non-MB stain	0	14	14
Total3	3	23	26

¹Fisher’s exact test: P = 0.538;

²Sensitivity = 100%, specificity = 91.3%, accuracy = 92.3%, PPV = 60%, NPV =100%, Fisher’s exact test: P = 0.004;

³Sensitivity = 100%, specificity = 60.9%, accuracy = 65.4%, PPV = 25%, NPV = 100%, Fisher’s exact test: P = 0.085. SIM: Specialized intestinal metaplasia; PPV: Positive predictive value; NPV: Negative predictive value; MB: Methylene blue.