Table 3.
Results of multivariate analysis by logistic regression.
| Factor | Adjusted odds ratio | 95% confidence interval |
p | |
|---|---|---|---|---|
| Lower | Upper | |||
| Age | 0.95972 | 0.91955 | 1.001 | 0.05955 |
| Pre-injury residence | 1.17401 | 0.52218 | 2.639 | 0.69793 |
| Ambulatory before injury | 0.64642 | 0.20489 | 2.039 | 0.45671 |
| Admission during weekend or holiday | 5.51797 | 2.42212 | 12.57 | 0.00005 |
| Femoral neck fracture | 0.62619 | 0.28701 | 1.366 | 0.23958 |
| Unstable fracture | 1.03267 | 0.49525 | 2.153 | 0.93167 |
| Anemia | 1.45505 | 0.75451 | 2.806 | 0.26302 |
| Electrolyte abnormalities | 1.91823 | 0.99671 | 3.691 | 0.05116 |
| Electrocardiographic abnormalities | 4.34595 | 2.18354 | 8.649 | 0.00003 |
| Femoral head replacement | 21.4482 | 3.68456 | 124.8 | 0.00065 |
| Length of hospital stay | 1.02911 | 1.00901 | 1.049 | 0.00435 |
| Ambulatory at discharge | 1.19902 | 0.54084 | 2.658 | 0.65499 |