Table 3.
Comparison of surgical features between the 30-day mortality cohort (group 1) and survivors (group 2)
| Variable | Group 1 (n = 35) | Group 2 (n = 432) | P value |
|---|---|---|---|
| Time to surgerya | |||
| < 48 h | 10 (29 %) | 226 (53 %) | 0.006* |
| ≥ 48 h | 25 (71 %) | 201 (47 %) | |
| Implant type, n (%) | |||
| Cannulated hip screws | 1 (3 %) | 16 (4 %) | 0.423 |
| Dynamic hip screw | 14 (40 %) | 173 (40 %) | |
| Uncemented semiarthroplasty | |||
| Unipolar | 9 (26 %) | 60 (14 %) | |
| Bipolar | 7 (20 %) | 128 (30 %) | |
| Cemented hemiarthroplasty | |||
| Unipolar | 1 (3 %) | 4 (1 %) | |
| Bipolar | 0 (0 %) | 8 (2 %) | |
| Intramedullary fixation | 3 (9 %) | 43 (10 %) | |
| Preoperative Hb in g/dl, mean ± SD | 11.2 ± 1.9 | 12.1 ± 1.7 | <0.001* |
| Postoperative Hb in g/dl, mean ± SD | 9.4 ± 1.9 | 9.9 ± 1.9 | 0.07 |
Hb haemoglobin
*Significant
aTime to surgery data missing in five patients in group 2