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Table 3 COX multivariate risk model analysis of risk factors for postoperative clinical failure

From: Treatment of pre-collapse non-traumatic osteonecrosis of the femoral head through Orthopdische Chirurgie München approach combined with autologous bone mixed with β-tricalcium phosphate porous bioceramic bone graft: a retrospective study of mid-term results

Variable

Wald χ2

Relative risk

95%CI

P value

lower

upper

ARCO stage

 ARCO IIB

     

 ARCO IIC

2.598

0.175

0.021

1.458

0.107

 ARCO IIIA

4.347

0.204

0.046

0.909

0.037

25(OH)D (nmol/L)

 < 50

1.009

2.209

0.471

10.364

0.315

 ≥ 50

     
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X