Table 2.

Assignment for multivariate analysis of factors.

Factors	Variable	Assignment
Age	X1	Continuous variable
Proportion of female	X2	No = 0, Yes = 1
BMI	X3	Continuous variable
Hypertension	X4	No = 0, Yes = 1
Diabetes	X5	No = 0, Yes = 1
Smoking history	X6	No = 0, Yes = 1
Cardiac arrest	X7	No = 0, Yes = 1
Drainage tube model	X8	Continuous variable
Perfusion tube model	X9	Continuous variable
Drainage-perfusion tube ipsilateral	X10	No = 0, Yes = 1
Distal perfusion tube DPC	X11	No = 0, Yes = 1
ECMO first auxiliary time	X12	Continuous variable
Hyperbilirubinemia	X13	No = 0, Yes = 1