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Table 1 Baseline characteristics of included patients

From: Semiautomatic intermittent pneumatic compression device applied to deep vein thrombosis in major orthopedic surgery

  Experimental group (N = 51) Control group (N = 61)
Gender (male/female) 29/22 36/25
Age (x ± s, years old) 55.6 ± 14.2 50.6 ± 19.2
Body weight (x ± s, Kg) 61.2 ± 9.5 61.8 ± 8.5
Primary diseases
 Femoral neck fracture 14 15
 Ischemic necrosis of femoral head 6 9
 Hip osteoarthritis 7 9
 Knee joint osteoarthritis 11 15
 Femoral dysplasia 13 13
Anesthesia method
 General anesthesia in the trachea 45 51
 Continuous epidural anesthesia 6 10
Prosthesis fixation   
 Non-cement fixation 7 9
 Cement fixation 32 36
 Mixed fixation 12 16