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Table 4 Univariate analyses of categorical variables with interest

From: Incidence and risk factors of preoperative deep venous thrombosis following pelvic and acetabular fractures: a retrospective case–control study

Variables

Number (%) of DVT (n = 82)

Number (%) of non-DVT (n = 525)

P value

Gender (male)

54 (65.9)

288 (73.9)

0.128

Age (> 46 years)

55 (67.1)

227 (43.2)

 < 0.001*

BMI (> 26.73 kg/m2)

42 (51.2)

142 (27.0)

0.001*

Diabetes mellitus

9 (11.0)

89 (17.0)

0.171

Hypertension

20 (24.4)

59 (11.2)

0.001*

Chronic heart disease

8 (9.8)

25 (4.8)

0.064

Current smoking

8 (9.8)

47 (9.0)

0.814

Alcohol consumption

8 (9.8)

47 (9.0)

0.814

Time from injury to surgery (> 9 days)

61 (74.4)

151 (28.8)

 < 0.001*

Injury mechanism (high-energy)

72 (87.8)

478 (91.0)

0.349

Accompanied injury

68 (82.9)

132 (25.1)

 < 0.001*

ASA classification (III-IV)

47 (57.3)

141 (26.9)

 < 0.001*

ALB (< 32.8 g/L)

47 (57.3)

211 (40.2)

0.004*

HDL-C (< 1.1 mmol/L)

57 (69.5)

339 (64.6)

0.382

LDL-C (> 3.37 mmol/L)

4 (4.9)

49 (9.3)

0.184

VLDL (> 0.78 mmol/L)

14 (17.1)

85 (16.2)

0.841

RBC (< lower limit)

71 (86.6)

441 (84.0)

0.549

HGB (< lower limit)

86 (82.9)

425 (81.0)

0.670

PLT (> 332.5)

30 (36.6)

99 (18.9)

 < 0.001*

PT < 10 s

1 (1.2)

6 (1.1)

0.952

APTT < 28 s

23 (28.0)

183 (34.9)

0.226

FIB (> 3.095 g/L)

68 (82.9)

302 (57.5)

 < 0.001*

D-Dimer (> 0.5 mg/L)

71 (86.6)

410 (78.1)

0.078

  1. ASA, the American Society of Anesthesiologists; RBC, red blood cell, reference range: female, 3.5–5.0*1012/L; males, 4.0–5.5*1012/L. HGB hemoglobin, reference range: females, 110–150 g/L; males, 120–160 g/L
  2. *Statistical significance