Table 2.

Subgroup analysis using logistic regression (control group)

Variable	Odds ratio (95% confidence interval)	p-value
Body mass index	0.98 (0.94–1.03)	0.426
Current alcohol consumer	1.03 (0.75–1.42)	0.835
Current smoker	1.24 (0.69–2.24)	0.469
Age	1.07 (1.05–1.09)	<0.001
Osteoporosis	2.23 (1.54–3.21)	<0.001