Table 3. Multivariate Analysis of Factors Related to Submucosal Fibrosis.

Variable	OR (95% CI)	P-value
Tumor size	1.01 (0.90–1.00)	0.700
Procedure time	1.02 (1.00–1.10)	0.100
Pit pattern	1.40 (0.90–2.10)	0.120
Carcinoma	5.70 (2.00–16.40)	0.001
Submucosal invasion	6.60 (1.30–32.50)	0.005
Complete resection	1.96 (0.30–4.40)	0.090
Perforation	4.68 (0.90–25.40)	0.070
Immediate bleeding	1.21 (0.10–6.70)	0.820
Delayed bleeding	1.24 (0.20–26.00)	0.890
Additional surgery	2.92 (0.20–38.30)	0.410