[Retracted] Application of Computer-Based Simulation Teaching Combined with PBL in Colorectal Tumor Hemorrhage

Table 12

Comparison of mortality rates between the two groups of patients at 7 and 21 days after surgery (cases (%)).

Group
Experimental group	1 (1.8)	2 (3.4)
Control group	2 (3.6)	4 (6.8)
x^2	0.126	0.175
	>0.05	>0.05