Table 5 Nonunion univariate and multivariate regression analysis

Univariate regression analysis:

 Comparison AO Classification 31A:

Ref

  2.1–3

1.018

0.258

4.018

0.979

  3.1–3

1.556

0.42

5.756

0.508

Multivariate regression analysis:

 Comparison AO Classification 31A:

Ref

  2.1–3

0.713

0.156

3.263

0.662

  3.1–3

0.657

0.116

3.712

0.634

Sex = female

0.528

0.117

2.376

0.405

Age (years)

1.01

0.955

1.068

0.733

ORIF

2.72

0.469

15.76

0.264

Cerclage

0.475

0.068

3.296

0.451

DM Type II

4.428

0.847

23.148

0.078

Polytrauma (ISS > 16)

3.032

0.755

12.175

0.118

Osteoporosis

1.97

0.419

9.266

0.391

Oncology

1.471

0.132

16.447

0.754