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Table 8 Health care provider-related factors

From: Risk factors for venous thromboembolism of total hip arthroplasty and total knee arthroplasty: a systematic review of evidences in ten years

Risk factors(health care provider - related factors) Studies reporting on a risk factor for THA or TKA:total number,number reporting a significant (p ≤ .05)increased(+) or decreased (−) risk,and number with no significant association (p > .05)
THA TKA
N p ≤ .05 p > .05 N p ≤ .05 p > .05
  + -    + -  
TKA (vs. THA) 4 2 0 2 4 2 0 2
THA (vs. resurfacing) 1 1 0 0 - - - -
Revision (vs. primary) 1 0 0 1 2 1 0 1
Bilateral (vs. unilateral) 3 1 0 2 4 2 0 2
Right side (vs. left side) - - - - 1 0 0 1
Cement (vs. cementless) 2 1 0 1 3 2 0 1
ROBODOC* (vs. traditional) 1 0 1 0 - - - -
Longer surgery time 3 1 0 2 3 1 0 2
General anesthesia 3 0 0 3 3 0 0 3
Spinal anesthesia - - - - 1 0 0 1
Bleeding ≥ 1280 ml - - - - 1 1 0 0
Lower hospital volume 1 1 0 0 2 1 0 1
Insurance type 1 0 0 1 - - - -
  1. *ROBODOC is a femoral milling system which excavates the femoral canal precisely and may reduce intraoperative pulmonary embolism during cementless THA.
  2. The comparisons are among private insurance, Medicare and Medicaid of USA.