Table 5 Multivariate linear regression analysis
Independent Variable | β-Coefficient | 95% Confidence Interval | P Value |
|---|---|---|---|
Aseptic loosening | |||
 Age | -0.02 | -0.05 – 0.01 | 0.269 |
 Female Sex | 0.55 | -2.08– 3.17 | 0.683 |
 Posterolateral approach (ref to others) | 0.18 | -0.59 – 0.94 | 0.654 |
 BMI | -0.07 | -0.19 – 0.06 | 0.302 |
 Indication (ref to primary THA) | |||
  Revision THA | 1.30 | 0.71 – 1.89 | <0.001 |
  Recurrent dislocation | 1.18 | 0.26 – 2.10 | 0.012 |
Septic loosening | |||
 Age | -0.02 | -0.05 – 0.01 | 0.226 |
 Female Sex | 1.39 | -1.54 – 4.32 | 0.353 |
 Posterolateral approach (ref to others) | 0.34 | -0.42 – 1.10 | 0.384 |
 BMI | -0.09 | -0.20 – 0.02 | 0.125 |
 Indication (ref to primary THA) | |||
  Revision THA | 1.85 | 1.26– 2.44 | <0.001 |
  Recurrent dislocation | 1.40 | 0.45 – 2.36 | 0.004 |
Extra-articular dislocation | |||
 Age | 0.01 | -0.03 – 0.05 | 0.741 |
 Female Sex | 1.18 | -1.82 – 4.18 | 0.440 |
 Posterolateral approach (ref to others) | -0.39 | -1.20 – 0.41 | 0.338 |
 BMI | -0.10 | -0.24 – 0.03 | 0.126 |
 Indication (ref to primary THA) | |||
  Revision THA | 1.02 | 0.30 – 1.73 | 0.006 |
  Recurrent dislocation | 0.78 | -0.49 – 2.04 | 0.230 |
Intra-prosthetic dislocation | |||
 Age | 0.00 | -0.05 – 0.04 | 0.829 |
 Female Sex | 1.30 | -2.04 – 4.64 | 0.444 |
 Posterolateral approach (ref to others) | -0.31 | -1.19 – 0.56 | 0.482 |
 BMI | -0.05 | -0.18 – 0.08 | 0.473 |
 Indication (ref to primary THA) | |||
  Revision THA | 0.52 | -0.24 – 1.28 | 0.180 |
   Recurrent dislocation | 0.88 | -0.19 – 1.94 | 0.107 |
Periprosthetic fracture | |||
 Age | -0.02 | -0.06– 0.02 | 0.340 |
 Female Sex | 0.81 | -2.47 – 4.08 | 0.629 |
 Posterolateral approach (ref to others) | 0.21 | -0.70 – 1.12 | 0.651 |
 BMI | -0.07 | -0.22 – 0.08 | 0.364 |
 Indication (ref to primary THA) | |||
  Revision THA | 0.93 | 0.23 – 1.62 | 0.009 |
  Recurrent dislocation | 0.42 | -0.93 – 1.77 | 0.542 |
Implant failure | |||
 Age | -0.04 | -0.07 – -0.02 | 0.002 |
 Female Sex | 3.34 | 0.91 – 5.78 | 0.007 |
 Posterolateral approach (ref to others) | 0.34 | -0.32 – 1.01 | 0.309 |
 BMI | -0.06 | -0.16 – 0.05 | 0.273 |
 Indication (ref to primary THA) | |||
  Revision THA | 1.48 | 0.93 – 2.03 | <0.001 |
  Recurrent dislocation | 1.08 | 0.24 – 1.92 | 0.012 |
Harris Hip score | |||
 Age | -0.01 | -0.34 – 0.32 | 0.964 |
 Female Sex | 3.66 | -15.82 – 23.15 | 0.713 |
 Posterolateral approach (ref to others) | -1.71 | -8.11 – 4.69 | 0.601 |
 BMI | 0.58 | -0.48 – 1.64 | 0.285 |
 Indication (ref to primary THA) | |||
  Revision THA | -9.44 | -15.17 – -3.72 | 0.001 |
  Recurrent dislocation | -6.81 | -15.42 – 1.80 | 0.121 |
Merle d’Aubigné score | |||
 Age | 0.03 | -0.03 – 0.09 | 0.378 |
 Female Sex | -4.10 | -8.17 – -0.03 | 0.049 |
 Posterolateral approach (ref to others) | 0. 23 | -0.64 – 1.11 | 0.600 |
 BMI | 0.14 | -0.03 – 0.31 | 0.109 |
 Indication (ref to primary THA) | |||
  Revision THA | -0.38 | -1.45 – 0.69 | 0.487 |
  Recurrent dislocation | -0.37 | -1.81 – 1.07 | 0.617 |