Table 3.
Discharge by timing of mobilisation among patients surgically treated for non-pathological first hip fracture from additive model including prefracture ambulation and residence
| Residence prefracture | Ambulation prefracture | Mobilisation | No. of patients | No of deathsa | No. of live discharges b | Unadjusted OR of CIF (95% CI) | Adjusted OR of CIF (95% CI)c |
|---|---|---|---|---|---|---|---|
| Indoor only | Delayed | 3925 | 412 | 2483 | 1 | 1 | |
| Early | 8054 | 400 | 5767 | 1.46 (1.33–1.61) | 1.52 (1.35–1.72) | ||
| Residential care | Outdoor | Delayed | 2974 | 241 | 1861 | 1 | 1 |
| Early | 8148 | 340 | 5818 | 1.81 (1.7–1.94) | 1.8 (1.65–1.96) | ||
| Home | Indoor only | Delayed | 4911 | 639 | 1200 | 1 | 1 |
| Early | 13,039 | 653 | 4540 | 2.27 (2.1–2.45) | 2.02 (1.82–2.23) | ||
| Outdoor | Delayed | 14,640 | 1015 | 5719 | 1 | 1 | |
| Early | 73,637 | 1548 | 41,464 | 2.81 (2.71–2.92) | 2.38 (2.26–2.5) |
Abbreviations: CIF Cumulative incidence function, CI Confidence interval, OR Odds ratio
aAt 30 days from surgery
bAt 30 days from surgery
cAdjusted for age, sex, ethnicity, fracture type, calendar period of admission, timing of surgery, comorbidity, procedure type, day of admission and hospital volume. CIF regression at in-patient days 3, 4, 6, 8, 12, 16, 20, 24, and 30. Results based on a subset of patients with known information for adjustment variables. The analysis of patients with imputation for missing values in adjustment variables in available in supplementary file 4
§Pepe-Mori test p-value. Two–sample test compared to mobilised 2 days or more after surgery