Crude | Adjusted | |||||
---|---|---|---|---|---|---|
HR | CI (95%) | p | HR | CI (95%) | p | |
Time interval | ||||||
Simultaneous | 1.0 | 0.1-7.1 | 0.97 | 1.4 | 0.2-10.6 | 0.75 |
≤6 months | 0.5 | 0.1-2.3 | 0.41 | 0.7 | 0.2-2.9 | 0.61 |
7-12 months | 0.8 | 0.3-2.2 | 0.61 | 0.9 | 0.3-2.5 | 0.78 |
>12 months (ref)a | 1.0 | - | - | 1.0 | - | - |
BMI | 1.0 | 0.9-1.1 | 0.83 | 1.0 | 0.9-1.1 | 0.76 |
ASA | ||||||
1(ref) | 1.0 | - | - | 1.0 | - | - |
2 | 2.3 | 0.7-7.7 | 0.19 | 3.0 | 0.7-13.0 | 0.15 |
3-5 | 6.6 | 1.9-22.9 | 0.003 | 8.2 | 1.8-37.3 | 0.006 |
Sex | ||||||
Male | 1.0 | - | - | 1.0 | - | - |
Female | 0.8 | 0.4-1.5 | 0.45 | 0.4 | 0.4-1.5 | 0.40 |
Fixation | ||||||
Cemented (ref) | 1.0 | - | - | 1.0 | - | - |
Uncemented | 0.4 | 0.1-1.6 | 0.18 | 0.5 | 0.1-2.0 | 0.30 |
Otherb | 0.7 | 0.3-2.1 | 0.56 | 0.8 | 0.3-2.4 | 0.73 |