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Table 3 Associations of anthropometric and DXA measures of body composition with MRI and MRS measures in obese and normal-weight subjects

From: Waist to hip ratio and trunk to extremity fat (DXA) are better surrogates for IMCL and for visceral fat respectively than for subcutaneous fat in adolescent girls

  Obese girls Normal-weight girls
  IMCL (AU) VAT (cm 2 ) SAT (cm 2 ) IMCL (AU) VAT (cm 2 ) SAT (cm 2 )
  r p r p r p r p r p r p
Subscapular skinfold thickness (mm) ns ns 0.77 0.003 0.95 < 0.0001 ns ns ns ns 0.47 0.09
Triceps skinfold (mm) ns ns 0.56 0.06 0.63 0.03 ns ns ns ns 0.53 0.05
Waist circumference-umbilicus (cm) ns ns 0.79 0.002 0.82 0.001 ns ns 0.74 0.002 0.85 < 0.0001
Waist circumference-iliac crest (cm) ns ns 0.78 0.003 0.89 0.0001 ns ns 0.81 0.0005 0.86 < 0.0001
Waist to hip ratio 0.78 0.008 0.62 0.04 ns ns ns ns ns ns ns ns
Waist to height ratio ns ns 0.82 0.001 0.73 0.007 ns ns 0.73 0.003 0.86 < 0.0001
Total fat (kg) ns ns 0.56 0.05 0.96 < 0.0001 ns ns 0.70 0.003 0.65 0.009
Percent body fat (%) 0.57 0.05 0.55 0.05 0.77 0.002 ns ns 0.70 0.003 0.66 0.007
Trunk fat (kg) 0.56 0.06 0.59 0.03 0.91 < 0.0001 ns ns 0.77 0.0007 0.74 0.002
Extremity fat (kg) ns ns 0.54 0.05 0.93 < 0.0001 ns ns ns ns 0.48 0.07
Percent trunk fat (%) 0.69 0.01 0.70 0.007 0.52 0.07 ns ns 0.79 0.0004 0.71 0.003
Percent extremity fat (%) -0.59 0.04 -0.70 0.008 -0.53 0.06 ns ns -0.80 0.0004 -0.63 0.01
Trunk to extremity fat ratio 0.59 0.04 0.72 0.006 0.53 0.06 ns ns 0.79 0.0004 0.72 0.003
  1. ns: not significant; P values <0.10 are reported with corresponding correlation coefficients
  2. IMCL: intramyocellular lipid; VAT: visceral adipose tissue; SAT: subcutaneous adipose tissue