表 2. Value assignment for the variables of logistic regression analysis.

logistic回归分析变量赋值表

Factor	Assignment description
Age/yr.	≤60=0, >60=1
Hypertension	No=0, Yes=1
Diabetes	No=0, Yes=1
Bedrest time after admission/d	<3=0, ≥3=1
Anticoagulant therapy	Yes=0, No=1
D-D/(mg/mL)	<0.95=0, ≥0.95=1
TG/(mmol/L)	<1.83=0, ≥1.83=1
BI score	>9=0, ≤9=1
Padua score	≤4=0, >4=1