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Table 3 Factors to Predict Deep Vein Thrombosis

From: Prevalence and risk factor of post-operative lower extremities deep vein thrombosis in patients undergoing gynecologic surgery: a single-institute cross-sectional study

Factors Total (%) Number of Patients Divided by DVT Status Univariate Analysis* Multivariate Analysis†
  No DVT(%) DVT (%) OD (95% CI) P- Value Adjusted OD (95% CI) P- Value
Age (year) 7.636 (1.312–44.434) 0.025 6.905 (1.096–43.522) 0.040
  < 60 86 (76.8) 84 (97.7) 2 (2.3)
  > =60 26 (23.2) 22 (84.6) 4 (15.4)
BMI (Kg/m2) 1.060 (1.012–1.111) 1.0
  > =30 6 (5.4) 6 (100)
  < 30 106 (94.6) 100 (94.3) 6 (5.7)
 Benign 68 (60.7) 67 (98.5) 1 (1.5) 8.590 (0.968–76.217) 0.034 3.207 (0.297–34.572) 0.337
 Malignancy 44 (39.3) 39 (88.6) 5 (11.4)
Hormone 1.067 (1.013–1.123) 0.591
 Yes 16 (14.3) 16 (100)
 no 96 (85.7) 90 (93.8) 6 (6.3)
Underlying disease 0.226 1.417 (0.197–10.183) 0.729
 No 66 (58.9) 64 (97.0) 2 (3.0) 3.048 (0.534-
 Yes 46 (41.1) 42 (91.3) 4 (8.7) 17.388)
Hysterectomy 0.942 (0.898–0.988) 1.00
 Yes 103 (92.0) 97 (94.2) 6 (5.8)
 No 9 (8.0) 9 (100)
Operative time 5.310 (0.923–30.567) 0.061 2.101 (0.292–15.138) 0.461
  < =3 h 79 (70.5) 77 (97.5) 2 (2.5)
  > 3 h 33 (29.5) 29 (87.9) 4 (12.1)
Perioperative blood transfusion 9.79 (1.663–57.498) 0.013 8.917 (1.420–55.997) 0.020
 No 90 (80.4) 88 (97.8) 2 (2.2)
 yes 22 (19.6) 18 (81.8) 4 (18.2)
  1. Binary regression: Backward stepwise (conditional) P < 0.5
  2. DVT = deep vein thrombosis, BMI = body mass index