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Table 2 Blood loss, length of hospital stay and complications after total hip arthroplasty

From: Bridging therapy for oral anticoagulation increases the risk for bleeding-related complications in total joint arthroplasty

  UFH bridging LMWH bridging LMWH prophylaxis p value
(n = 14) (n = 9) (n = 1494)
Blood loss     
 Preop. haemoglobin level, mmol/L (range) 8.0 (6.1–9.4) 8.2 (5.9–9.6) 8.5 (5.3–11.1)a 0.313
 Postop. haemoglobin level, mmol/L (range) 5.0 (3.2–6.8) 6.0 (3.7–8.2) 6.5 (3.6–9.0)b <0.001
 Haemoglobin decrease, mmol/L (range) 3.0 (0.4–5.3) 2.2 (0.3–5.2) 2.0 (0.3–5.3)c 0.044
 Transfusion units Mean (range) 5.8 (0–25) 2.9 (0–18) 0.2 (0–6) 0.040
  Median 4 0 0  
 Bleeding index Mean (range) 8.8 (0.4–30) 5.0 (0.3–22) 2.1 (0.3–9.3)c 0.027
  Median 6.9 2.2 1.9  
Hospital stay     
  Mean days (range) 23.9 (7–71) 9.9 (4–27) 6.8 (4–69) 0.009
  Median 16 8 6  
Complications     
 Any complication 11 (79 %) 4 (44 %) 218 (14.6 %) <0.001
 Bleeding-related complication     
  Major bleeding 9 (64 %) 3 (33 %) 46 (3.1 %) <0.001
  Minor bleeding 0 0 5 (0.3 %) 1.000
  Neuropraxia due to hematoma 3 (21 %) 1 (11 %) 0 <0.001
  Evacuation of hematoma 7 (50 %) 1 (11 %) 3 (0.2 %) <0.001
 Thromboembolic complication     
  Arterial thromboembolism 0 0 4 (0.3 %) 1.000
  Deep venous thrombosis 0 0 7 (0.5 %) 1.000
  Pulmonary embolism 0 0 3 (0.2 %) 1.000
 Heparin-induced thrombocytopenia 1 (7 %) 0 0 NAd
 Infected THA 1 (7 %) 0 13 (0.9 %) 0.194
 Death 0 2 (22 %) 4 (0.3 %) 0.001
  1. aTwenty-six values unknown
  2. bFour values unknown
  3. cTwenty-eight values cannot be calculated
  4. dNot applicable, number too small to perform statistics