Table 1 Univariate analysis of the risk factors for DVT
Characteristic | DVT (+) group | DVT (−) group | P value |
|---|---|---|---|
No. of patients | 269 | 2595 | |
Age | 61.3 ± 10.3 | 52.6 ± 11.7 | 0.002 |
Gender(M/F) | 129/140 | 1382/1213 | 0.097 |
BMI (kg/m2) | 24.2 ± 3.6 | 23. 5 ± 2.9 | 0.376 |
Hypertension | 137 | 1509 | 0.066 |
Coronary heart disease | 102 | 956 | 0.301 |
Diabetes mellitus | 89 | 823 | 0.633 |
Rheumatoid arthritis | 31 | 12 | 0.000 |
Major surgery | 82 | 648 | 0.164 |
Lumbar pathologies | 0.659 | ||
Lumbar disc herniation | 87 | 901 | |
Lumbar spinal stenosis | 107 | 1026 | |
Isthmic spondylolisthesis | 75 | 668 | |
Preoperative D-dimer (±) | 112/157 | 89/2056 | 0.000 |