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Table 5 Multivariate linear regression analysis

From: Risk factors and modes of failure in the modern dual mobility implant. A systematic review and meta-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
  1. BMI: body mass index; ref: reference; THA: total hip arthroplasty