Table 2.
Comparison of baseline characteristics and outcomes between the three groups described in the study
| Group 1 Pre-BPT n=233 |
Group 2 BPT achievers n=183 |
Group 3 BPT fails n=100 |
Statistical test | P-value | |
|---|---|---|---|---|---|
| Age (years) | |||||
| Median | 82 | 85 | 85 | Kruskal–Wallis | 0.032 |
| Range | 60–99 | (60–100) | (60–100) | ||
| Sex | |||||
| Male:female | 55:178 | 41:142 | 22:78 | χ2 2×3 | 0.927 |
| Fracture type | |||||
| Intracapsular:extracapsular | 126:107 | 101:82 | 59:41 | χ2 2×3 | 0.708 |
| ASA grade | |||||
| 1 | 2 | 5 | 3 | χ2 4×3 | 0.255 |
| 2 | 45 | 45 | 18 | ||
| 3 | 148 | 115 | 66 | ||
| ≥4 | 38 | 18 | 13 | ||
| LOS-T (days) | |||||
| Median | 15 | 12 | 12 | Kruskal–Wallis | 0.005 |
| Range | 1–141 | 2–83 | 1–46 | ||
| LOS-H (days) | |||||
| Median | 23 | 18 | 18 | Kruskal–Wallis | 0.895 |
| Range | 3–378 | 2–134 | 2–106 | ||
| Mortality, n (%) | |||||
| 30 days | 16 (6.9%) | 9 (4.9%) | 7 (6.9%) | χ2 2×3 | 0.683 |
| Mortality, n (%) | |||||
| 365 days | 52 (22.3%) | 29 (15.9%) | 19 (18.8%) | χ2 2×3 | 0.166 |
| Causes of 365-day mortality | |||||
| Respiratory | 19 | 15 | 8 | χ2 5×3 | 0.354 |
| Cardiac | 11 | 5 | 3 | ||
| Renal | 1 | 1 | 3 | ||
| Malignancy | 9 | 2 | 2 | ||
| Others | 12 | 6 | 3 | ||
Abbreviations: ASA, American Society of Anesthesiologists; BPT, best practice tariff; LOS-T, length of stay on trauma ward; LOS-H, length of stay (total) in hospital.