Table 7 Univariate and multivariate analysis of factors associated with achieving a dilator size of 15 mm.

Parameters	Dilator size 15 mm achieved, n=180	Univariate	Multivariate
		P value	OR (95% CI)	P value
Gender, n (%)		0.08
Males	137 (76)
Females	42 (23)
Age (years)	71 (20–96)	0.04
Stricture localization, n (%)		0.28
Proximal	40 (22)
Mid	42 (23)
Distal	71 (39)
Elongated	4 (2)
Etiology of stricture, n (%)		0.82
Peptic	59 (33)
Post-radiation	25 (14)
Eosinophilic esophagitis	4 (2)
Anastomotic stenosis	11 (6)
Corrosive	1 (0.6)
Post-therapeutic after ER-/APC-therapy or RFA	58 (32)
Pseudodiverticulosis	5 (3)
Desquamative esophagitis	0 (0)
Papillomatosis	0 (0)
Other	7 (6)
Center, n (%)		<0.001	(2.49–76.82)	0.003
1	158 (88)
2	22 (12)
Stricture length, n (%)	2 (1–10)	0.22