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Table 2 Bone mineral density and geometry measurements

From: Femoral geometry, bone mineral density, and the risk of hip fracture in premenopausal women: a case control study

  Fracture group Control group P value a P value
Femoral neck BMD (g/cm2) 0.721 ± 0.123 0.899 ± 0.115 <0.001  
Total hip BMD (g/cm2) 0.724 ± 0.120 0.923 ± 0.116 <0.001  
Hip axis length (mm) 105.72 ± 4.88 101.80 ± 4.91 0.007 0.020
Neck shaft angle (degree) 123.09 ± 2.81 126.07 ± 4.56 0.008 0.006
Cross sectional area (mm2) 105.59 ± 15.85 130.92 ± 17.99 <0.001 0.710
Cross sectional moment of inertia (mm4) 7031.12 ± 1630.76 8521.96 ± 1652.57 0.004 0.322
Minimal neck width (mm) 28.70 ± 2.10 28.78 ± 1.60 0.743 0.486
Cortical thickness of femoral neck (mm) 3.77 ± 1.38 4.33 ± 1.32 0.141 0.853
Cortical thickness of femoral shaft (mm) 4.05 ± 1.25 4.36 ± 1.06 0.321 0.679
Section modulus (mm3) 434.96 ± 89.34 540.46 ± 82.75 <0.001 0.315
Buckling ratio 4.84 ± 1.75 3.96 ± 1.30 0.105 0.849
  1. Data are means ± SD
  2. P value for Mann–Whitney U test
  3. a P value for ANCOVA (adjusted for femoral neck BMD)