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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