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Table 5 The association analysis between the quantitative analysis methods and three variables by multiple linear regression

From: Paraspinal back muscles in asymptomatic volunteers: quantitative and qualitative analysis using computed tomography (CT) and magnetic resonance imaging (MRI)

Variable CSA (mm2) HU Fat fraction (%)
CT, Adj R2 = 0.779 MRI, Adj R2 = 0.765 CT, Adj R2 = 0.730 MRI, Adj R2 = 0.663
B(β) SE p-value B(β) SE p-value B(β) SE p-value B(β) SE p-value
Age        −0.43 (−0.46) −0.09 < 0.001 0.38 (0.519) 0.08 < 0.001
Sex − 393.79 (− 0.42) 95.56 < 0.001 − 365.32 (− 0.46) 86.23 < 0.001 −10.47 (− 0.67) 1.54 < 0.001 7.14 (0.569) 1.42  
BMI 111.14 (0.61) 18.44 < 0.001 87.56 (0.56) 16.98 < 0.001       
  1. B Linear regression coefficient, β Standardized linear regression coefficient, SE Standard error, Adj R2 Adjusted R square, CSA Cross sectional area, HU Hounsfield unit, BMI Body mass index