Table 1.
Descriptive characteristics of the sample (listwise deleted data)
| Characteristic | Revision sample, number (%) | Dislocation sample, number (%) |
|---|---|---|
| Total | 28,772 (100.0) | 19,623 (100) |
| Diabetes | 5324 (19) | 3607 (18) |
| ASA score ≥ 3 | 10,637(38) | 7378 (38) |
| Male | 12,260 (43) | 8280 (42) |
| White | 22,960 (80) | 15,255 (78) |
| Osteoarthritis | 26,770 (93) | 18,359 (94) |
| Posterior approach | 21,124 (77) | 15,311 (81) |
| Characteristic | Mean (SD) | Mean (SD) |
|---|---|---|
| Height (inches) | 67 (4) | 67 (4) |
| Age (years) | 67 (11) | 67 (11) |
| BMI (kg/m2) | 29 (6) | 29 (6) |
| Operative time (minutes) | 90 (33) | 88 (32) |
| Surgeries performed by surgeon at the time of surgery | 191 (179) | 201 (187) |
Revision sample, number, missing: 771 ASA, 84 race, 1326 approach, 514 height, 2989 operative time, 517 BMI; dislocation sample, number, missing: 410 ASA, 3 race, 768 approach, 16 height, 976 operative time, 15 BMI; ASA = American Society of Anesthesiologists; BMI = body mass index.