Long-term outcomes of endoscopic submucosal dissection for gastric dysplasia and early neoplasia in a United Kingdom Caucasian population

Table 1 Patient demographics and features of gastric lesions with endoscopic submucosal dissection attempted, n (%)

Variable	Value
Patient demographics	n = 93
Age at time of ESD procedure (years), mean ± SD (range)	75 ± 9.01 (41-91)
Male/female	59/34
Caucasian	93 (100)
Average number of ESD attempts per patient	1.20
Features of lesions with ESD attempted	n = 111
Diameter of lesions (mm), mean ± SD (range)	30.4 ± 14.7 (10-100)
Location of lesions
Lower	65 (58.6)
Middle	32 (28.8)
Upper	14 (12.6)
Paris classification
1p	1
1s	9
1s + 1sp	1
1sp	18
1s + 2a	1
1s + 2b	1
1sp + 2c	1
2a	28
2a + 2b	4
2a + 2c	44
2b	2
2b + 2c	1
Pre-index histology
No dysplasia	0 (0)
Indefinite for dysplasia	2 (1.8)
Low grade dysplasia	43 (38.7)
High grade dysplasia	41 (36.9)
Intramucosal carcinoma	25 (22.5)
Adenocarcinoma with submucosal invasion	0 (0)

ESD: Endoscopic submucosal dissection.