Table 4 The compare of cumulative mortality after injury between two groups
Cumulative mortality after injury | Treatment regime | χ2 | P | |
|---|---|---|---|---|
Nonoperative group N (%) | Arthroplasty group N(%) | |||
0-30 days | 9 (17.0) | 3 (9.1) | 1.055 | 0.304 |
0–1 year | 23 (43.4) | 4 (12.1) | 9.236 | 0.002* |
0–2 year | 27 (50.9) | 8 (24.2) | 6.008 | 0.014* |
0–3 year | 34 (64.2) | 13 (39.4) | 5.029 | 0.025* |
0–4 year | 38 (71.7) | 15 (45.5) | 5.923 | 0.015* |
0–5 year | 42 (79.2) | 17 (51.5) | 7.261 | 0.007* |
Total | 42 (79.2) | 17 (51.5) | 7.261 | 0.007* |