Table 1.

Clinical features of study population

	Number	Average age (yr)	Male:Female
Total	391	52.41	211:180
RE I	39	52.12	26:13
II	35	53.67	26:9
III	29	55.56	24:5
IM at GEJ	51	54.37	39:12
SSBE	43	54.71	34:9
LSBE	26	58.66	20:6
LGD	7	59.57	5:2
HGD	5	62.00	3:2
Cardiac adenocarcinoma	15	62.64	13:2

LGD: Low grade dysplasia, HGD: High grade dysplasia, IM: Intestinal metaplasia.