Table 1.
Patient demographics, diagnosis, operative time, length of stay.
| Gender (N = 958)a,b | Female (%) | 520 (54.3) |
| Male (%) | 438 (45.7) | |
| Age (N = 958)a,b | Mean ± SD | 64.2 ± 9.8 |
| BMI (N = 958)a,b | Mean ± SD | 29.6 ± 6.0 |
| Surgery type (N = 958)a,b | Primary THA (%) | 372 (38.8) |
| Primary TKA (%) | 586 (61.2) | |
| ASA (N = 958)a,b | I (%) | 15 (1.6) |
| II (%) | 554 (57.8) | |
| III (%) | 379 (39.6) | |
| IV (%) | 10 (1.0) | |
| Diagnosis (N = 958)a,b | AVN | 1 (0.1) |
| FN FX | 3 (0.3) | |
| OA | 942 (98.3) | |
| Posttraumatic OA | 9 (0.9) | |
| RA | 3 (0.3) | |
| Operative time (min) (N = 958)a,b | Mean ± SD | 77.8 ± 19.1 |
| Length of stay (h) (N = 958)a,b | Mean ± SD | 34.8 ± 14.0 |
| Length of stay (d) (N = 958)a,b | Mean ± SD | 1.4 ± 0.6 |
BMI, body mass index; ASA, American Society of Anesthesiologists score; RA, rheumatoid arthritis; OA, osteoarthritis; FN FX, femoral neck fracture; AVN, avascular necrosis.
a
Nine surgeries canceled.
b
Eighteen bilateral surgeries excluded.