Clinical Study
Anti-Phospholipid Antibodies in Patients Undergoing Total Joint Replacement Surgery
Table 1
Description of preoperative characteristics in a population undergoing joint replacement surgery by aPL status preoperatively.
| Characteristic | Positive for APLA preoperatively | Negative for APLA preoperatively | P value | 54 (44) | 69 (56) |
| Mean age at the time of surgery (±sd) | 60.6 (16.8) | 63.2 (9.3) | 0.32 | Mean body mass index—kg/m2 (±sd) | 34.2 (7.4) | 35.0 (7.3) | 0.56 | female (%) | 30 (56) | 42 (61) | 0.55 | current or past smoker (%) | 28 (52) | 33 (48) | 0.05 | missing | 16 (30) | 8 (12) | | receiving a total hip replacement (%) | 16 (30) | 18 (26) | 0.06 | with a prior joint replacement surgery (%) | 1 (2) | 14 (20) | 0.002 | with an indication to screen for thrombosis post-operatively (%) | 8 (15) | 7 (10) | 0.43 |
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