Table 2 The variable assignments of logistic regression
From: The deep vein thrombosis of lower limb after total hip arthroplasty: what should we care
Factors | Variables | Assignment |
|---|---|---|
VTE | Y | Yes = 1, no = 2 |
Age(y) | X1 | ≥ 70 = 1, < 70 = 2 |
BMI(kg/m2) | X2 | ≥ 28 = 1, < 28 = 2 |
Diabetes | X3 | Yes = 1, No = 2 |
Number of replacement joints | X4 | Bilateral = 1, unilateral = 2 |
Duration of surgery(min) | X5 | ≥ 120 = 1, < 120 = 2 |
Type of prosthesis | X6 | Cemented prosthesis = 1, biological prosthesis = 2 |
Duration of days in bed | X7 | ≥ 3 = 1, < 3 = 2 |