Table 4. Multicollinearity analysis of related factors.

Model	Collinearity statistics
	Tolerance	Variance inflation factor
Male	0.660	1.515
Aspirin	0.948	1.055
Clopidogrel	0.977	1.023
Postoperative platelet	0.978	1.023
Postoperative total bilirubin	0.665	1.503
Postoperative fibrinogen	0.938	1.066
Postoperative C-reactive protein	0.851	1.175
Postoperative serum creatinine	0.981	1.019