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Table 2 Summary of the full and reduced multivariable logistic regression model.

From: Risk factor analysis for early femoral failure in metal-on-metal hip resurfacing arthroplasty: the effect of bone density and body mass index

Variables

Degree of Freedom

Type*

P value

Full model including all of the following variables (P = 0.04)

Femoral fixation type

1

C

0.7

Femoral Component Size

1

N

0.5

Primary DX

1

C

0.95

Sex

1

C

0.27

Age

1

N

0.67

T-score

2**

C

0.002

BMI

1

N

0.02

Reduced model only including significant variables (P = 0.002)

T-score

2**

C

0.002

BMI

1

N

0.02

  1. * C = Category; N = Numerical
  2. ** Grouped with T≥0, 0 > T > -1.5, and T≤ -1.5