Table 3: Characterization of LST-NG lesions by AFI in group B.

Quality of visualization
GoodPoor

Macroscopic type
 Flat elevated16250.07*
 Flat or flat depressed06
Lesion size (mm)
 Median2530<0.05**
 Range20–4520–60
Location
 Rectum250.32*
 Cecum or colon1426
Pathological finding
 Adenoma420.08*
 Adenocarcinoma1229

*Fisher’s exact test.
**Mann-Whitney test.