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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