Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 3 Cox proportional hazard regression models for reinfection-free survival and overall survival
Description | Hazard ratio (95% CI) | p value* | |
|---|---|---|---|
Reinfection-free survival | |||
Model 1 (n = 157) | |||
Time to reimplantation | > 94 days vs. ≤ 94 days | 2.83 (1.40–5.68) | 0.0036 |
CCI | x + 1 vs. x value | 1.12 (0.93–1.35) | 0.2250 |
CRP (at first stage) | x + 1 mg/dl vs. x mg/dl | 1.01 (0.98–1.04) | 0.4794 |
Model 2 (n = 163) | |||
Time to reimplantation (continuous) | x + 1 vs. x days | 1.004 (1.002–1.007) | 0.0068 |
x + 7 vs. x days | 1.03 (1.01–1.05) | – | |
x + 30 vs. x days | 1.14 (1.05–1.23) | – | |
Overall survival | |||
Model 3 (n = 157) | |||
Time to reimplantation | > 94 days vs. ≤ 94 days | 1.92 (0.82—4.51) | 0.1321 |
CCI | x + 1 vs. x value | 1.45 (1.18—1.78) | 0.0004 |
CRP (at first stage) | x + 1 mg/dl vs. x mg/dl | 0.98 (0.94—1.02) | 0.3530 |