Natural history of Barrett's esophagus

Table 1 Barrett’s esophagus: Development of dysplasia

Author	Patients with BE	Dysplasia at diagnosis	Patient years follow up	New LGD	New HGD	New dysplasia incidence(%)
Miros et al[43]	81	13	290	10	1	7.5
Katz et al[59]	102	5	563	19	4	4.1
O’Connor et al[60]	136	Excluded	570	24	4	4.9
Basu et al[61]	138	3	405	7	0	1.7
Alcedo et al[63]	155	Excluded	3875	83	12	2.7
Ferraris et al[64]	187	5	562	5	2	2.1
Weston et al[65]	108	Excluded	362	-	5	1.4
Oberg et al[66]	140	Excluded	946	44	4	5.0
Sharma et al[67]	618	-	2546	156	22	7.14

LGD: Low grade dysplasia; HGD: High grade dysplasia; BE: Barrett’s esophagus.