Table 3. The predictive factors for vertebral fragility fracture occurrence.

Group by age	Factors	Univariate			Multivariate
		OR	95% CI	P value	OR	95% CI	P value
Under 70	Age, yr	1.10	1.07–1.13	< 0.001	1.08	1.04–1.11	< 0.001
	Women	3.36	2.39–4.71	< 0.001	2.81	1.96–4.03	< 0.001
	BMI, kg/m2	1.02	0.97–1.06	0.536	-	-	-
	BMD, overall T-score	0.61	0.52–0.71	< 0.001	0.73	0.62–0.85	< 0.001
	Previous vertebral fracture	1.98	1.43–2.73	< 0.001	1.50	1.06–2.12	0.023
70 and over	Age, yr	1.22	1.14–1.29	< 0.001	1.20	1.12–1.28	< 0.001
	Women	2.70	1.67–4.36	< 0.001	1.90	1.09–3.32	0.024
	BMI, kg/m2	0.92	0.87–0.98	0.009	0.98	0.91–1.05	0.554
	BMD, overall T-score	0.53	0.43–0.65	< 0.001	0.64	0.50–0.82	< 0.001
	Previous vertebral fracture	2.18	1.38–3.45	0.001	1.37	0.84–2.22	0.210

OR = odds ratio, CI = confidence interval, BMI = body mass index, BMD = bone mineral density.