Table 2.

Multivariable logistic regression analysis using stepwise method for union status at 6 months after treatment

Factors	p-value	Adjusted odds ratio (95% CI)
Age (<80 vs. ≥80 years)	0.205	2.21 (0.65 – 8.11)
Gender	p > 0.25
Fracture level (TL vs. non-TL)	0.001*	11.67 (2.48 – 83.17)
BMD at lumbar spine (≤ − 2.5 vs. > − 2.5 SD)	0.001*	11.68 (2.48 – 83.17)
Pre-existing VCF	p > 0.25
Posterior wall fracture	0.001*	8.53 (2.25 – 42.23)
Past bisphosphonate use	0.019*	4.86 (1.29 – 22.09)
Pharmaceutical agents (TPD vs. BP)	0.002*	8.15 (2.02 – 43.33)

*p < 0.05, 95% CI 95% confidence interval, BMD bone mineral density, SD standard deviation, VCF vertebral compression fracture, TL thoracolumbar spine (T11-L2), non-TL non-thoracolumbar spine (T5-T10 or L3-L5), TPD teriparatide, BP bisphosphonatecme