Table 2 . Multivariable regression analysis for each skeletal site considering the discordance between Z- score and T-scores as dependent variable.

Skeletal sites Independent variables	Total Hip	Femoral Neck	Trochanter	Lumbar Spine
Age (yr)	0.023	0.032	0.016	0.036
BMI (kg/m2)	0.012	0.015	0.017	-0.005
Sex (female/male)	0.33	0.35	0.47	0.21

The presented data are β values of each independent variable in any skeletal site. All β values were statistically significant (P value<0.001). The analyses are adjusted for city of living.