Table 2.

Results of multivariate analysis of risk factors for severe injuries after falls

A.
Items	Estimated coefficient (β)	Standard error for β	Sig.	Hazard ratio	95% C.I. for β
STRATIFY	0.431	0.121	<0.001	1.539	1.214	1.952
FRAX™	0.048	0.012	<0.001	1.049	1.024	1.074
B.
Items	Estimated coefficient (β)	Standard error for β	Sig.	Odds ratio	95% C.I. for β
STRATIFY	0.539	0.118	<0.001	1.714	1.359	2.161
FRAX™	0.052	0.012	<0.001	1.054	1.029	1.079
Constant	-7.780	0.284	<0.001

Risk factors that were significantly associated with severe injures after falls in Table 1 were analyzed by multivariate Cox’ s regression analysis (A) and multiple logistic regression analysis (B). Significant factors were selected by using the stepwise selection method. CI, confidence interval.