Covered nitinol stents for the treatment of esophageal strictures and leaks

Table 3 Demographic and clinical data of the patient population

	Total	Ultraflex	Choostent	P-value
Patients	65	33	32	-
Male/female	43/22	23/10	20/12	0.5
Mean age (range)	67.5 (34-86)	66.8 (34-83)	68.3 (42-86)	0.6
Grade of dysphagia (mean ± SD)	3.4 ± 0.4	3.4 ± 0.3	3.5 ± 0.4	0.9
Diagnosis
Adenocarcinoma	31	16	15	0.9
Squamous cell carcinoma	20	11	9	0.8
Extrinsic compression	4	2	2	0.9
Anastomotic fistula	3	2	1	0.6
Anastomotic stricture	3	1	2	0.5
Anastomotic recurrence	2	1	1	0.9
Post-radiotherapy stricture	2	0	2	0.1
Site of lesion
Cervical	3	2	1	0.6
Upper thoracic	9	6	3	0.3
Middle thoracic	21	11	10	0.9
Lower thoracic	32	14	18	0.4
Tumor stage (n = 51)
III	19	12	7	0.6
IVA	17	8	9	0.7
IVB	15	7	8	0.5