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Table 2 Determinants of bone mineral density: results of multiple linear regression analysis

From: Contributions of lean mass and fat mass to bone mineral density: a study in postmenopausal women

Model and determinant Bone mineral density (g/cm2)
  Lumbar spine Femoral neck Whole body
Model 1: Age and body weight    
Age (5 years) -0.036 (0.004) -0.029 (0.003) -0.032 (0.003)
Weight (5 kg) 0.027 (0.005) 0.022 (0.004) 0.016 (0.004)
R-squared 0.33 0.38 0.37
Model 2: Age and height    
Age (5 years) -0.032 (0.005) -0.028 (0.003) -0.029 (0.003)
Height (5 cm) 0.027 (0.008) 0.012 (0.006) 0.016 (0.006)
R-squared 0.29 0.30 0.34
Model 3: Age, body weight, height    
Age (5 years) -0.034 (0.004) -0.030 (0.003) -0.031 (0.003)
Weight (5 kg) 0.023 (0.006) 0.024 (0.004) 0.015 (0.004)
Height (5 cm) 0.012 (0.008) -0.005 (0.006) 0.006 (0.006)
R-squared 0.34 0.38 0.37
Model 4: Age and BMI    
Age -0.039 (0.004) -0.032 (0.003) -0.034 (0.003)
BMI 0.031 (0.008) 0.032 (0.058) 0.019 (0.006)
R-squared 0.30 0.37 0.35
Model 5: Age, lean mass, fat mass    
Age (5 years) -0.036 (0.004) -0.029 (0.003) -0.030 (0.003)
Lean mass (5 kg) 0.034 (0.011) 0.031 (0.008) 0.036 (0.008)
Fat mass (5 kg) 0.022 (0.009) 0.017 (0.007) 0.001 (0.006)
R-squared 0.33 0.38 0.39
Model 6: Age, lean mass index, fat mass index*    
Age (5 years) -0.039 (0.004) -0.033 (0.003) -0.033 (0.003)
Lean mass index (kg/m2) 0.010 (0.006) 0.014 (0.004) 0.015 (0.004)
Fat mass index (kg/m2) 0.009 (0.004) 0.008 (0.003) 0.000 (0.003)
R-squared 0.29 0.36 0.36
  1. Notes: All bolded figures indicate that the association was statistically significant at p < 0.05 level. (1) lean mass index = lean mass/height2, and fat mass index = fat mass/height2 (see Methods section).