Table 4.

Factors found to be related to quantitative ultrasound based on multivariate linear regression analysis

Model variables	BUA				SOS
	B	Beta	t	P	B	Beta	t	P
Sex (women versus men)	−4.119	−0.116	−10.643	0.000	−5.863	−0.092	−8.407	0.000
Age (older versus younger)	−0.312	−0.169	−15.558	0.000	−0.636	−0.191	−17.613	0.000
Body mass index (higher versus lower)	0.194	0.037	3.530	0.000	0.159	0.017	1.604	0.109
Education background (higher versus lower)	0.770	0.049	4.437	0.000	1.120	0.040	3.583	0.000
With osteoporotic fracture history	−4.027	−0.069	−6.421	0.000	−7.583	−0.072	−6.714	0.000
Heard of osteoporosis before	−2.347	−0.065	−4.392	0.000	−3.816	−0.058	−3.965	0.000
Heard of osteoporotic fractures	1.142	0.027	1.857	0.063	0.532	0.007	0.480	0.631
Drinking milk daily	0.795	0.024	2.227	0.026	1.740	0.029	2.705	0.007
Taking calcium daily	0.162	0.004	0.278	0.781	0.168	0.002	0.160	0.873
Taking vitamin D daily	−0.675	−0.010	−0.846	0.398	0.403	0.003	0.281	0.779
Doing physical activity daily	0.625	0.019	1.574	0.116	1.018	0.017	1.423	0.155

Notes: bold figures indicate statistical significance between awareness and quantitative ultrasound.

Abbreviations: BUA, broadband ultrasound attenuation; SOS, speed of sound.