Associate factors for endoscopic submucosal dissection operation time and postoperative delayed hemorrhage of early gastric cancer

Table 2 Indigenous test results of multivariate linear regression independent variables

Factors	Unstandardized β value	Sx value	Standardized β value	t value	P value
Intercept	21.674	0.433	-	36.188	< 0.001
Maximum diameter of lesion	8.815	0.684	0.732	3.812	< 0.001
Lesion form - flat	1.277	1.475	0.032	0.333	0.493
Lesion form - concave type	3.766	0.872	0.383	4.456	< 0.001
Lesion form - mixed	10.247	0.929	0.633	9.580	< 0.001
Combined ulcer or scar	4.417	0.305	0.180	3.154	0.007
Combined perforation	3.692	2.303	0.153	2.340	0.020
Infiltrative depth - submucosa	2.536	0.569	0.077	2.652	0.008