Table 3.

Determining factors for en bloc resection

	P value	Odds ratio	95% Confidence Interval
Gender	0.668
Age	0.948
Endoscopist	0.07
Location	0.649
Morphology	1
Granularity	1
Prior tattoo injection	0.222
Prior biopsy	1
Prior submucosal injection	0.155
Submucosal fibrosis	0.004	0.0478	0.00267–0.754
Size	0.591
Histology	0.702
Degree of dysplasia	0.761
Type of knife	1
Use of traction aids	1
Hybrid snaring	< 0.001	0.024	0.003–0.215
ESD time	0.287