Table 5.

Multivariate analysis

	OR	SE	p value	95% CI
Tumor size	0.9659766	0.0184927	0.071	0.9304032–1.00291
Specimen/tumor size ratio	1.212812	0.1014413	0.021	1.029432–1.428858
Procedure time	1.006174	0.0019655	0.002	1.002329–1.010033
Submucosal fibrosis	0.2213803	0.2372302	0.159	0.0271016–1.808351
Horizontal margin	11.09294	6.749357	0.000	3.366232–36.55521

CI, confidence interval; OR, odds ratio; SE, standard error.