Application of the Prague C and M criteria for endoscopic description of columnar-lined esophagus in South Korea

Table 1 Application of Prague circumferential and maximal criteria in cases with ultrashort, short, and long columnar-lined esophagus (n = 213)

Lengths of CLE (cm)	n (%)	C0Mx cases (%)
0 (islands only)	20 (9.4)	20 (100)
0.5-0.9	99 (46.5)	99 (100)
1.0-1.5	63 (29.6)	61 (96.8)
1.5-1.9	15 (7.0)	14 (93.3)
2.0-2.4	14 (6.6)	12 (85.7)
2.5-2.9	1 (0.5)	1 (100)
≥ 3.0	1 (0.5)	1 (100)
Total	213 (100)	208 (97.7)1

¹Exceptions: 2 cases with C1M1 and 3 cases with either C1M1.5, C1M2, or C1.5M2. CLE: Columnar-lined esophagus.

Table 2 Application of Prague circumferential and maximal criteria in cases with short and long columnar-lined esophagus (n = 139)

Lengths of CLE (cm)	n (%)	C0Mx cases (%)
0 (islands only)	45 (32.4)	45 (100)
1.0-1.4	63 (45.3)	61 (96.8)
1.5-1.9	15 (10.8)	14 (93.3)
2.0-2.4	14 (10.1)	12 (85.7)
2.5-2.9	1 (0.7)	1 (100)
≥ 3.0	1 (0.7)	1 (100)
Total	139 (100)	134 (96.4)1

¹Exceptions: 2 patients with C1M1 and 3 patients with either C1M1.5, C1M2, or C1.5M2. CLE: Columnar-lined esophagus.