Table 4.
Multivariate Logistic Regression Models for Independent Ambulation and Recovery of Pre-Fracture Mobility at 1-Year.
| Variable | Independent Ambulation at 1-year | Recovery of Pre-fracture Mobility | ||
|---|---|---|---|---|
| OR (95% CI) | P-Value | OR (95% CI) | P-Value | |
| Age | 1.02 (.93, 1.11) | .75 | 1.17 (1.02, 1.34) | .02 |
| Gender | ||||
| Male | — | — | Ref | |
| Female | — | — | .01 (.00, .34) | .01 |
| Surgical procedure | ||||
| THA | Ref | Ref | ||
| HA | .03 (.00, .29) | .00 | .00 (.00, .16) | .00 |
| Mode of anaesthesia | ||||
| General anaesthesia | Ref | Ref | ||
| Regional anaesthesia | .08 (.01, .59) | .01 | .38 (.04, 3.96) | .42 |
| Preoperative ambulation | ||||
| No walking aid | Ref | — | — | |
| Walking stick | 3.03 (.55, 16.54) | .20 | — | — |
| Walking frame | 4.28 (.38, 48.23) | .24 | — | — |
| Non-hip complications | ||||
| None | Ref | Ref | ||
| 1 | 4.15 (.64, 27.00) | .14 | 3.22 (.90, 11.56) | .07 |
| 2 or more | 2.09 (.26, 16.98) | .49 | 2.84 (.23, 35.71) | .42 |
| Time to surgery (days) | — | — | 1.10 (1.01, 1.20) | .02 |
| Duration of surgery (mins) | — | — | 1.00 (.97, 1.02) | .77 |
| EBL (ml) | — | — | 1.00 (1.00, 1.00) | .91 |
| Goodness-of-fit statistics | ||||
| Hosmer-lemeshow | P = .75 | P = .925 | ||
| R-square | .24 | .68 | ||
OR: odds ratio. CI: confidence interval. THA: total hip arthroplasty. HA: hemiarthroplasty.
No multicollinearity present in this model.