Table 2

Spearman product-moment correlation matrix between HU at L1−L4 and VBQ scores.

VariableCBRHU at L1HU at L2HU at L3HU at L4HU at L1−L4
CBR
 r 1.000−0.340*−0.385*−0.310*−0.290*−0.347*
 P  0.001<0.0010.0020.004<0.001
HU at L1
 r  1.0000.867*0.597*0.649*0.853*
 P   <0.001<0.001<0.001<0.001
HU at L2
 r   1.0000.698*0.686*0.905*
 P    <0.001<0.001<0.001
HU at L3
 r    1.0000.639*0.870*
 P     <0.001<0.001
HU at L4
 r     1.0000.843*
 P      <0.001
HU at L1–L4
 r      1.000
 P       

  • Abbreviations: CBR, canal bone ratio; HU, Hounsfield units; VBQ, vertebral body quality.

  • *P < 0.05 indicates significant differences.