Table 2.

Hazard ratios of selected features for osteopenia.

Feature	Univariate HR	Univariate 95% CI	Univariate P-value	Multivariate HR	Multivariate 95% CI	Multivariate P-value
Age	1.01	1.00-1.02	0.010	0.99	0.98-1.01	0.365
Menopause	20.71	9.82-43.66	<0.001	31.5	13.85-71.63	<0.001
UA (umol/L)	1.00	1.00-1.00	0.001	1.00	1.00-1.01	0.157
TP (g/L)	1.04	1.02-1.06	<0.001	1.05	1.02-1.07	<0.001
CHOL (mmol/L)	1.13	1.05-1.21	0.002	0.51	0.36-0.72	<0.001
HDLC (mmol/L)	1.56	1.22-1.99	<0.001	6.32	1.88-21.27	0.003
LDLC (mmol/L)	1.13	1.04-1.22	0.003	2.21	1.57-3.12	<0.001
TPINP (ng/mL)	1.01	1.00-1.01	<0.001	1.00	0.99-1.00	0.132
β-CTX (ng/mL)	3.04	2.26-4.08	<0.001	2.39	1.55-3.69	<0.001
VITD (ng/mL)	1.02	1.02-1.03	<0.001	1.02	1.01-1.03	<0.001
HGB (g/L)	0.99	0.98-1.00	0.03	0.94	0.91-0.97	<0.001
LYM (×10~9/L)	1.29	1.10-1.52	0.002	1.00	0.51-1.95	0.993
MONO (×10~9/L)	3.97	1.87-8.43	<0.001	23.89	2.44-234.42	0.006

The Cox proportional hazard model was used to calculate HR and 95% CI. Multivariable analysis was done based on significant factors from the univariable analysis.