Clinical Study
Anti-Phospholipid Antibodies in Patients Undergoing Total Joint Replacement Surgery
Table 3
Characteristics of the joint replacement population post-operatively.
| | Characteristic (%) | Positive for APLA at least twice post-operatively | Negative/no data for APLA post-operatively | P value | | 45 (79) | 12 (21) |
| | Mean age at the time of surgery (±sd) | 62.1 (8.1) | 62.5 (9.7) | 0.37 | | Mean body mass index—kg/m2 (±sd) | 34.5 (7.3) | 38.3 (7.8) | 0.12 | | female (%) | 26 (58) | 9 (75) | 0.28 | | current or past smoker (%) | 25 (56) | 4 (33) | 0.11 | | missing | 3 (7) | 0 (0) | | | receiving a total hip replacement (%) | 12 (27) | 3 (25) | 0.91 | | with a prior joint replacement surgery (%) | 6 (13) | 4 (33) | 0.11 | | with an indication to screen for thrombosis (%) | 5 (11) | 1 (8) | 0.78 | | on Lovenox post-operatively (%) | 4 (9) | 12 (100) | <0.0001 | | on Coumadin post-operatively (%) | 41 (91) | 0 (0) | | Mean days on coumadin post-operatively (±sd) | 30.8 (10.5) | N/A |
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