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Table 1 Characteristics of the study population and difference between DVT group and non-DVT group

From: Usefulness of clinical predictors for preoperative screening of deep vein thrombosis in hip fractures

  Total (n = 92) DVT group (n = 15) Non-DVT group (n = 77) p-value
Age, year Ω 78 ± 10 81 ± 10 78 ± 9 0.29
Female gender ♦ 68 (73.9) 12 56 0.75
BMI, kg/m2 c 22.6 ± 4.5 23.5 ± 6..0 22.4 ± 4.1 0.49w
Right side ♦ 52 (56.5) 8 44 0.78
Extracapsular fracture ♦ 45 (48.9) 10 35 0.16
High-energy mechanism ♦ 5 (5.4) 1 4 1.00
Active smoker ♦ 3 (3.3) 2 (13.3) 1 (1.3) 0.009*
CCI Ω 5.7 ± 2.3 6.5 ± 2.7 5.5 ± 2.2 0.11
Swollen leg ♦ 9 (9.8) 5 4 0.005*
Pitting edema ♦ 6 (6.5) 3 3 0.05
Time to doppler USG, day 2 (1–7) 3 (1.25–6.5) 2 (1–7.25) 0.61m
Wells score Ω 0.9 ± 0.9 1.5 ± 1.1 0.8 ± 0.8 0.05*
Caprini score Ω 12.1 ± 1.4 12.8 ± 1.3 11.9 ± 1.3 0.02*
D-dimer, ng/mL ■ 4343 (1766–11433) 4530 (2675–8874) 4258 (1611–12080) 0.68m
  1. BMI body mass index, CCI Charlson comorbidity index
  2. Ω; value presented as mean ± standard deviation
  3. ♦; value presented as number of cases (percentage)
  4. ■; value presented as median (interquartile range)
  5. w; p-value calculated from Welch test
  6. m; p-value calculated from Mann-Whitney U test
  7. *; significant value with p < 0.05
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