Table 3 Multiple generalized estimating equation regression for resection speed > 9 cm2/hr .

	Adjusted odds ratio	95% confidence interval		P value
Lesion length > 4 cm	9.16	5.53	15.17	0.000
Location				0.003
Esophagus	Reference	.	.	.
Stomach	0.70	0.28	1.76	0.447
Jejunum or duodenum	0.14	0.04	0.56	0.005
Colon	0.53	0.29	0.98	0.044
Appendix or IC valve	0.08	0.02	0.40	0.002
Rectum	0.97	0.43	2.20	0.942
Fibrosis	0.42	0.16	1.09	0.074
Previous resection	0.53	0.16	1.70	0.282
Ink tattooing	0.34	0.07	1.62	0.176