Table 3 Results of multiple linear regression analysis

Age (years)

0.003

0.017

0.877

0.022

0.038

 < 0.05

Gender

-0.060

0.266

 < 0.05

-1.329

0.611

0.133

Height(cm)

-0.014

0.032

0.662

-0.040

0.073

0.587

Weight(kg)

-0.010

0.019

0.605

0.060

0.043

0.169

High blood pressure

-0.254

0.261

0.332

-0.153

0.599

0.799

Diabetes

0.634

0.535

0.240

1.298

1.229

0.295

Causes of injury

0.038

0.095

0.687

-0.545

0.217

 < 0.05

Fracture segment

-0.353

0.248

0.159

0.023

0.569

0.968

Length of stay

0.034

0.032

0.285

0.015

0.073

0.839

Previous history

-0.613

0.578

0.292

1.121

1.327

0.401

BMD (T-score)

-0.206

0.242

0.397

-1.425

0.555

0.212

Preoperative VAS score

-0.006

0.114

0.958

-0.037

0.261

0.888

Preoperative ODI score

-0.018

0.029

0.528

0.022

0.067

0.741

Length of surgery(min)

-0.003

0.006

0.539

1.218

0.013

0.995

Bone cement dosage(ml)

0.146

0.074

0.052

0.326

0.170

0.058

Anti-osteoporosis treatment

-0.320

0.257

0.217

-0.849

0.591

 < 0.05

Vertebral re-fractures

-0.622

0.400

0.124

0.135

0.919

0.883