Table 1. Characteristic and clinical information for the 2,655 study subjects.
Cases (N = 689) | Controls (N = 1,966) | Statistics | P | |
---|---|---|---|---|
Age, mean ± sd | 59.6 ± 5.7 | 58.5 ± 6.5 | t = 4.3 | 1.78 × 10−5 |
BMI, mean ± sd | 25.9 ± 1.6 | 25.4 ± 1.7 | t = 6.8 | 1.23 × 10−11 |
Gender (%) | ||||
Male | 295 (43) | 840 (43) | ||
Female | 394 (57) | 1,126 (57) | χ2 = 0 | 1 |
Site of Surgery (%) | ||||
hip | 396 (57) | 1,146 (58) | ||
knee | 293 (43) | 820 (42) | χ2 = 0.11 | 0.74 |
Hypertension (%) | ||||
Yes | 205 (30) | 555 (28) | ||
No | 484 (70) | 1,411 (72) | χ2 = 0.51 | 0.48 |
Hyperlipemia (%) | ||||
Yes | 197 (29) | 490 (25) | ||
No | 492 (71) | 1,476 (75) | χ2 = 3.39 | 0.07 |
Diabetes (%) | ||||
Yes | 39 (6) | 103 (5) | ||
No | 650 (94) | 1,863 (95) | χ2 = 0.11 | 0.75 |
Smoking (%) | ||||
Yes | 117 (17) | 316 (16) | ||
No | 572 (83) | 1,650 (84) | χ2 = 0.25 | 0.62 |
Location of the thrombosis (%) | ||||
Proximal | 586 (85) | - | ||
Distal | 85 (12) | - | ||
Both | 18 (3) | - | - | - |