Table 1.
Characteristic data of the subjects.
| Variables | Total patients | Total patients | ||||
|---|---|---|---|---|---|---|
| Without DVT (n = 1030) |
With DVT (n = 244) |
P value | Without symptomatic DVT (n = 1210) |
With symptomatic DVT (n = 64) |
P value | |
| Age (mean years ± SD) | 64.4 ± 13.1 | 68.9 ± 10.1 | <0.001 | 65.0 ± 12.8 | 67.9 ± 11.9 | 0.083 |
| Female gender | 686 (66.6%) | 184 (82.1%) | 0.007 | 820 (67.8) | 50 (78.1%) | 0.083 |
| BMI (mean kg/m2 ± SD) | 24.6 ± 4.2 | 25.0 ± 4.4 | 0.138 | 24.6 ± 4.3 | 26.0 ± 3.8 | 0.012 |
| Hypertension | 420 (40.9%) | 107 (43.9%) | 0.380 | 501 (41.4%) | 26 (40.6%) | 0.092 |
| Insulin resistance | 135 (13.0%) | 27 (11.1%) | 0.389 | 154 (12.7%) | 8 (12.5%) | 0.988 |
| Smoking history | 64 (6.2%) | 14 (5.7%) | 0.780 | 76 (6.3%) | 2 (3.1%) | 0.305 |
| Malignancy | 20 (2.0%) | 10 (4.1%) | 0.046 | 26 (2.1%) | 4 (6.2%) | 0.035 |
| Heart disease | 104 (10.3%) | 26 (10.7%) | 0.079 | 119 (9.8%) | 11 (17.2%) | 0.058 |
| Thrombosis history | 129 (12.5%) | 38 (15.6%) | 0.206 | 148 (12.2%) | 19 (29.7%) | <0.001 |
| eGFR (mean ml/min per 1.73 m2 ± SD) | 148.1 ± 54.0 | 129.6 ± 40.9 | <0.001 | 146.0 ± 52.5 | 116.5 ± 38.4 | <0.001 |
| D-dimer (mg/L) | 1.3 ± 3.6 | 1.1 ± 2.2 | 0.590 | 1.2 ± 3.5 | 1.2 ± 2.0 | 0.970 |
| CRP | 4.9 ± 1.2 | 5.6 ± 0.9 | 0.073 | 5.1 ± 1.3 | 5.4 ± 1.0 | 0.154 |
| Fibrinogen (g/L) | 3.3 ± 0.8 | 3.2 ± 0.8 | 0.456 | 3.3 ± 0.8 | 3.3 ± 0.7 | 0.711 |
P < 0.05 was considered statistically significant.
TJA, total joint arthroplasty; DVT, deep vein thrombosis; SD, standard deviation; BMI, body mass index; eGFR, estimated glomerular filtration rate; CRP, C-reactive protein.