Skip to main content

Table 5 Factors associated with bone density

From: The relationship between bone density and the oral function in older adults: a cross-sectional observational study

All subjects B Standard error β t-value P-value CI
Lower-Upper
Sex
(0:Male, 1:Female)
−13.898 1.848 −0.28 −7.519 < 0.001 −17.527 −10.268
Age (years) −0.741 0.164 −0.185 −4.505 < 0.001 −1.063 − 0.418
BMI (kg/m2) 1.06 0.303 0.128 3.494 0.001 0.464 1.656
One-leg standing (sec) 0.116 0.044 0.108 2.631 0.009 0.029 0.203
Occlusal force (kgf) 0.054 0.023 0.09 2.39 0.017 0.01 0.098
(constant) 1522.885 15.418   98.771 < 0.001 1492.608 1553.163
SMI (kg/m2) 0.009   0.016 0.219 0.827   
Tongue pressure (kPa) 0.024   0.023 0.607 0.544   
Masticatory performance (score) 0.024   0.029 0.595 0.552   
Knee extension force (N) 0.033   0.044 0.832 0.406   
Males only B Standard error β t-value P-value CI Lower-Upper
One-leg standing (sec) 0.156 0.033 0.277 4.670 < 0.001 0.090 0.222
BMI (kg/m2) 0.922 0.264 0.205 3.493 0.001 0.402 1.442
Occlusal force (kgf) 0.039 0.018 0.133 2.237 0.026 0.005 0.074
(constant) 50.183 6.249   8.030 < 0.001 37.874 62.492
Masticatory performance (score) −0.024   −0.031 −0.372 0.71   
SMI (kg/m2) 0.037   0.052 0.581 0.562   
Knee extension force (N) 0.016   0.016 0.247 0.805   
Age (years) −0.101   −0.105 −1.599 0.111   
Females only B Standard error β t-value P-value CI Lower-Upper
Age (years) −0.522 0.125 − 0.245 −4.165 < 0.001 − 0.768 −0.275
(constant) 117.944 9.272   12.720 < 0.001 99.690 136.198
Tongue pressure (kPa) −0.021   −0.022 − 0.349 0.727   
Knee extension force (N) 0.09   0.097 1.492 0.137   
Occlusal support (reference Group A)     
Group B 0.04   0.039 0.658 0.511   
Group C −0.027   −0.028 −0.445 0.657   
  1. The multiple regression analysis was performed as follows: Dependent variable: SOS, explanatory variables: items significantly associated with bone density in Tables 3 and 4, adjusted variables: age, and sex (only All subjects formula) stepwise selection method (input 0.05, removal 0.10). Italicized explanatory variables are variables that have been removed from the final multiple regression formula
  2. B: Unstandardized coefficient, β: Standardized coefficient, CI: 95% confidence interval for unstandardized coefficient
  3. The coefficient of determination: All subjects; R2 = 0.185, Males only; R2 = 0.155, Females only; R2 = 0.06