Table 2.
Patient demographics and presurgery details for the patients who had an outpatient TKA and the patient who had an inpatient TKA.
| Patient characteristics | Outpatient | Inpatient | P value |
|---|---|---|---|
| Mean age (y) | 73.2 ± 5.5 | 75.0 ± 6.0 | <.01 |
| % Female | 406 (65.0%) | 213 (77.7%) | <.01 |
| Mean BMI (kg/m2) | 30.8 ± 5.8 | 32.17 ± 6.8 | <.01 |
| Mean CCI | 3.6 ± 1.5 | 4.1 ± 1.8 | <.01 |
| Diagnosis | |||
| Rheumatoid arthritis | 486 (77.8%) | 215 (78.5%) | .37 |
| Osteoarthritis | 138 (22.1%) | 57 (20.8%) | |
| Avascular necrosis | 1 (0.2%) | 2 (0.7%) | |
| Mean ASA | 2.5 ± 0.6 | 2.7 ± 0.5 | <.01 |
| Mean KOOSJR | 49.4 ± 13.2 | 46.6 ± 12.6 | .21 |
| Mean VR12 pcs | 32.7 ± 7.9 | 28.0 ± 6.9 | <.01 |
| Mean VR12 mcs | 51.0 ± 11.6 | 45.4 ± 11.8 | <.01 |
| Mean mFI | 1.1 ± 1.2 | 1.4 ± 1.2 | <.01 |
| Mean RCRI | 0.1 ± 0.3 | 0.1 ± 0.4 | .02 |
| Cardiac history | 140 (22.4%) | 70 (25.5%) | .34 |
| Venous thromboembolism | 41 (6.6%) | 24 (8.8%) | .30 |
| Diabetes mellitus | 76 (12.2%) | 43 (15.7%) | .18 |
| Rheumatology | 140 (22.4%) | 70 (25.5%) | .35 |
RCRI, Revised Cardiac Risk Index.