Brief Article
Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Sep 28, 2013; 19(36): 6011-6019
Published online Sep 28, 2013. doi: 10.3748/wjg.v19.i36.6011
Table 1 Demographic data of all patients in squamous high grade dysplasia, carcinoma in situ United Kingdom radiofrequency ablation registry n (%)
VariableValue
No. of patients completed protocol20
Age, yr
mean ± SD71.6 ± 9.4
Range38-88
Sex,
Female16 (80)
Male4 (20)
Caucasian ethnicity,20 (100)
Grade of esophageal neoplasia at study entry
High grade dysplasia (Tis)12 (60)
ESCC (T1a)8 (40)
1Focal squamous dysplasia4 (20)
2Multi-focal squamous dysplasia16 (80)
Length of non-focal squamous dysplasia, cm
mean ± SD6.1 ± 4.2
Number of centers recruiting8
Previous endoscopic mucosal resection5 (25)