Table 2.
Comparison of demographic parameters of patients with and without DVT
| DVT | |||
|---|---|---|---|
| Variables | Yes | No | p value |
| (N = 29) | (N = 171) | ||
| Male sex (F/M) | 25/4 | 124/47 | 0.12 |
| ASA score ≥ 3 [no./total no.(%)] | 13/29(44.8%) | 61/171(35.7%) | 0.35 |
| Age (years) | 71.0 ± 6.9 | 69.0 ± 7.0 | 0.16 |
| BMI (kg/m2) | 26.5 ± 3.9 | 27.8 ± 3.5 | 0.07 |
| Obesity (BMI ≥ 27, no.) | 15 | 102 | 0.42 |
| Pre-operative laboratory data | |||
| Hemoglobin (g/dl) | 12.6 ± 0.9 | 13.4 ± 1.1 | < 0.01 |
| Platelet count (109cells/L) | 249.2 ± 59.8 | 228.7 ± 55.1 | 0.27 |
| PT INR | 1.0 ± 0.04 | 1.0 ± 0.6 | 0.67 |
| aPTT INR | 1.0 ± 0.1 | 1.0 ± 0.1 | 0.28 |
| Types of anesthesia (no.) | 0.61 | ||
| General anesthesia | 25 | 139 | |
| Spinal anesthesia | 4 | 32 | |
| Total blood loss (ml) | 989.8 ± 300.3 | 1056.6 ± 335.7 | 0.32 |
| Blood transfusion | 0/29(0%) | 8/171(4.7%) | 0.61 |
All data are expressed as mean ± standard deviation
ASA American Society of Anesthesiologists, BMI Body mass index, INR International normalized ratio, PT Prothrombin time, aPTT Activated partial thromboplastin time