Table 1.

Patient demographics and lesion characteristics

Age, median (IQR), years	66 (56–77)
Sex, male/female, n	97/19
BE length
Short segment/long segment, n	88/28
Circumferential/maximal extent, median (IQR), cm	1.0 (0.4–2.0)/2.3 (1.2–5.0)
Hiatal hernia, n (%)	59 (66)
Reflux esophagitis, n (%)	84 (72)
Grade M/A/B/C/D	61/7/14/2/0
Histology associated with NBI magnification images
Non-dysplastic, n (CM/SIM)	67 (37/30)
Dysplastic, n (LGD/HGD/superficial adenocarcinoma)	89 (18/41/30)
Adenocarcinoma (depth), M/SM	29/1
Adenocarcinoma (grading), differentiated/undifferentiated	27/3

QR interquartile range, BE Barrett’s esophagus, CM columnar metaplasia without specialized intestinal metaplasia, SIM specialized intestinal metaplasia, LGD low-grade dysplasia, HGD high-grade dysplasia; M mucosal layer, SM submucosal layer