Table 7. Multivariate analysis of co-morbidities and ambulation completion percentage.
| Variables | Correlation coefficient | P value |
|---|---|---|
| TME | −0.278 | 0.036 |
| COPD | −0.199 | 0.049 |
| Psychiatric disorder | −0.113 | 0.277 |
| Mobility disorder | 0.059 | 0.578 |
| Duration of surgery (min) | −0.126 | 0.226 |
| BMI | 0.033 | 0.744 |
| Tobacco usage | 0.187 | 0.091 |
| Chronic pain | 0.078 | 0.489 |
| On pain meds before surgery | −0.032 | 0.763 |
| Pain score after surgery | 0.011 | 0.926 |
| Use of Alvimopan | 0.105 | 0.338 |
| Use of PCA | −0.060 | 0.557 |
| Diabetes, type I | −0.078 | 0.411 |
| Diabetes, type II | −0.051 | 0.612 |
TME, total morphine equivalence; COPD, chronic obstructive pulmonary disease; BMI, body mass index; PCA, patient-controlled analgesia.