Table 1. Patient characteristics and endoscopic findings.

	ESD	EMR
Patients, n Lesions, n	17 22	67 93
Age, mean ± SD, years	67 ± 7.4	66 ± 7.0
Male, n Female, n	16  1	65 2
Patients with synchronous or previous history of esophageal or pharyngeal SCC, n (%)	17 (100)	62 (93)
Hypopharynx, n (%) Oropharynx, n (%)	19 (86)  3 (14)	72 (77) 21 (23)
Macroscopic type, n  0-I  0-IIa  0-IIb  0-IIc	0 10 12  0	2 40 44  7
Median follow-up period (range), months	19 (12 – 30)	42 (3 – 115)

ESD, endoscopic submucosal dissection; EMR, endoscopic mucosal resection; SD, standard deviation; SCC, squamous cell carcinoma.