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Table 3 Results of the stepwise regression analysis for the prediction of whole-body and regional fat percentages in men in the equation group

From: Assessment of whole-body and regional body fat using abdominal quantitative computed tomography in Chinese women and men

Dependent DXA variable

Independent QCT variable

Prediction equation

Adjusted

R2

SEE

TBF%

T12/L1%fat

0.27 × T12/L1%fat + 0.51 × BMI + 5.89

0.77

2.98

L1/L2%fat

0.27 × L1/L2%fat + 0.43 × BMI + 5.76

0.83

2.55

L2/L3%fat

0.28 × L2/L3%fat + 0.60 × BMI-0.29

0.83

2.56

L3/L4%fat

0.44 × L3/L4%fat + 4.85

0.81

2.69

L4/L5%fat

0.36 × L4/L5%fat + 0.50 × BMI-3.22

0.80

2.77

L5/S1%fat

0.41 × L5/S1%fat + 0.60 × BMI-6.19

0.80

2.79

Android %fat

T12/L1%fat

0.46 × T12/L1%fat + 1.12 × BMI-7.42

0.87

3.90

L1/L2%fat

0.43 × L1/L2%fat + 1.12 × BMI-9.49

0.90

3.43

L2/L3%fat

0.45 × L2/L3%fat + 1.41 × BMI-19.34

0.89

3.50

L3/L4%fat

0.63 × L3/L4%fat + 0.27 × weight-14.86

0.89

3.50

L4/L5%fat

0.58 × L4/L5%fat + 1.22 × BMI-23.85

0.87

3.83

L5/S1%fat

16.54 × log(L5/S1%fat) + 1.88 × BMI-73.14

0.80

4.82

Gynoid %fat

T12/L1%fat

0.13 × T12/L1%fat + 0.59 × BMI + 7.40

0.47

3.68

 

L1/L2%fat

0.21 × L1/L2%fat + 16.90

0.52

3.50

 

L2/L3%fat

0.18 × L2/L3%fat + 0.46 × BMI + 6.42

0.56

3.32

 

L3/L4%fat

0.31 × L3/L4%fat + 10.29

0.59

3.23

 

L4/L5%fat

0.31 × L4/L5%fat + 9.61

0.56

3.34

 

L5/S1%fat

0.40 × L5/S1%fat + 6.91

0.65

2.98

  1. DXA dual-energy X-ray absorptiometry, TBF% total body fat percentage, QCT quantitative computed tomography, adjusted R2 adjusted coefficient of determination, SEE standard error of the estimate