Table 3 Univariate analysis of potential factors associated with DVT
Variables | Number (%) of patients with non- DVT(n = 452) | Number (%) of patients with DVT (n = 47) | P |
|---|---|---|---|
Gender (males) | 138 (30.5) | 15 (31.9) | 0.845 |
Age (years) | 72.5 ± 8.3 | 74.3 ± 7.2 | 0.078 |
Body mass index (BMI) | 23.5 ± 3.7 | 23.9 ± 3.8 | 0.529 |
< 24.0 | 248 (54.9) | 25 (53.2) | 0.728 |
24.0–27.9 | 152 (33.6) | 18 (38.3) | |
≥ 28 | 52 (11.5) | 4 (8.5) | |
Smoking | 84 (18.6) | 12 (25.5) | 0.250 |
Alcohol drinking | 135 (29.9) | 22 (53.2) | 0.017 |
Hypertension | 211 (46.7) | 21 (44.7) | 0.794 |
Diabetes mellitus | 86 (19.0) | 6 (12.8) | 0.292 |
Pulmonary disease | 12 (2.7) | 1 (2.1) | 0.829 |
Cerebrovascular disease | 117 (25.9) | 13 (27.7) | 0.792 |
Liver disease | 15 (3.3) | 1 (2.1) | 0.659 |
Renal disease | 30 (6.6) | 10 (21.3) | < 0.001 |
Interval between injury and DVT examination or diagnosis (days) | 3.7 ± 1.3 | 3.9 ± 1.4 | 0.361 |
≤ 3 | 207 (45.8) | 15 (31.9) | 0.068 |
> 3 | 245 (54.2) | 32 (68.1) | |
ASA score | 0.818 | ||
I | 23 (5.1) | 1 (2.1) | |
II | 275 (60.8) | 30 (63.8) | |
III and IV | 154 (34.1) | 16 (34.1) | |
D-dimer > age*0.02 mg/L | 150 (33.2) | 26 (55.3) | 0.003 |
D-dimer > 0.5 mg/L | 308 (68.1) | 41 (87.2) | 0.007 |
PDW (%) | 16.1 ± 1.7 | 15.9 ± 1.7 | 0.296 |
≥ 16.4 | 278 (61.5) | 15 (31.9) | < 0.001 |
< 16.4 | 174 (38.5) | 32 (68.1) | |
Albumin | 35.0 ± 5.8 | 32.9 ± 5.3 | 0.027 |
< 35 g/L | 222 (49.1) | 34 (72.3) | 0.002 |
≥ 35 g/L | 230 (50.9) | 13 (27.7) |