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Table 2 Multivariable analysis of independent risk factors for DVT

From: A nested case-control study on the risk factors of deep vein thrombosis for Chinese after total joint arthroplasty

Perioperative factors P value OR 95% CI
Surgical site
 THA 1.00 (reference)
 TKA 0.034 1.836 (1.047–3.222)
Age (years)
  ≤ 60 1.00 (reference)
  > 60 to ≤ 70 0.614 1.178 (0.624–2.223)
  > 70 0.028 1.991 (1.007–3.683)
Drain use
 No 1.00 (reference)
 Yes 0.003 4.920 (1.732–14.050)
Ambulation time
  ≤ 24 h 1.00 (reference)
  > 24 h to ≤ 48 h 0.310 1.669 (0.620–4.495)
  > 48 h to ≤ 72 h 0.083 2.174 (0.904–5.229)
  ≥ 72 h 0.000 6.166 (2.859–13.301)
  1. DVT deep vein thrombosis