Primary TKA | Revision TKA | |||||
---|---|---|---|---|---|---|
Black (N=145 888, 5.4%) | White (N=2 538 687, 94.6%) | p Value | Black (N=18 717, 7.0%) | White (N=248 927, 93.0%) | p Value | |
Demographics | ||||||
Age, mean (SD) | 73.5 (5.8) | 74.6 (5.9) | <0.001 | 73.8 (6.1) | 75.2 (6.2) | <0.001 |
Sex, women (%) | 117 327 (80.4) | 1 637 435 (64.5) | <0.001 | 14 583 (77.9) | 144 327 (58.0) | <0.001 |
Comorbidity, number (%) | ||||||
Diabetes | 38 163 (26.2) | 389 098 (15.3) | <0.001 | 5003 (26.7) | 42 462 (17.1) | <0.001 |
Congestive heart failure | 8006 (5.5) | 105 177 (4.1) | <0.001 | 1688 (9.0) | 18 568 (7.5) | <0.001 |
Obesity | 16 340 (11.2) | 170 627 (6.7) | <0.001 | 1902 (10.2) | 15 299 (6.2) | <0.001 |
Renal failure | 4035 (2.8) | 30 555 (1.2) | <0.001 | 971 (5.2) | 5365 (2.2) | <0.001 |
Number of comorbid conditions, mean (SD) | 2.0 (1.4) | 1.7 (1.4) | <0.001 | 2.1 (1.5) | 1.8 (1.4) | <0.001 |
SD, standard deviation; TKA, total knee arthroplasty.