Establishment and validation of a predictive model for peripherally inserted central catheter-related thrombosis in patients with liver cancer

Table 2 Variable assignment

Variable	Content	Assign
Y	Whether blood clots	No thrombus = 0, thrombus = 1
X1	Age	< 60 = 0, ≥ 60 = 1
X2	Sex	Male = 0, female = 1
X3	KPS score	> 50 = 0, ≤ 50 = 1
X4	Time in bed	≤ 12 hours/day = 0, > 12 hours/day = 1
X5	Parenteral nutrition	No = 0, yes = 1
X6	Tube time	< 1 = 0, 1-6 = 1, > 6 = 2
X7	TNM staging	I-II = 0, III-IV = 1
X8	Distant metastasis	No = 0, yes = 1
X9	Myelosuppression	No = 0, yes = 1
X10	Disability of self-care ability	No = 0, yes = 1

KPS: Karnofsky performance status; TNM: Body mass index.