The correlation and prediction error of anthropometric indicators and quantitative computed tomography in measuring abdominal fat / 重庆医学

ABSTRACT

Objective To investigate the correlation and standard estimate error of anthropometric indicators and abdominal visceral fat by quantitative computed tomography (QCT) .Methods We measured the height ,weight ,waist circumference(WC) , hip circumference(HC) in 568 Chinese adults (including 234 males and 334 females) .Abdominal adipose tissue was quantitatively measured by tissue composition module of Mindways QCT software using QCT scan data .The total fat area(TFA) and the visceral fat area(VFA) were measured in a slice in the inferior of T12 ,L1 ,L2 ,L3 ,L4 ,L5 vertebra and umbilicus level .The subcutaneous fat area(SFA) ,total abdominal fat volume ,total visceral fat volume(TVFV) and total subcutaneous fat volume(TSFV) were calculated from measurements .Correlations among BMI ,WC ,HC ,WHR and VFA was assessed .Standard estimate error(SEE) of BMI ,WC , HC ,WHR in the prediction of the VFA by QCT was calculated .Results Correlation between WC and VFA in different anatomical locations was better than BMI ,HC and WHR ,the correlation coefficients R2 was 0 .48-0 .64 in male and 0 .53-0 .66 in female ,all P<0 .01 .The SEE of WC in the prediction of the VFA measured by QCT were 25 .36-31 .57 cm2 (male) ,23 .64-25 .31 cm2 (fe‐male) ,or 23 .13% -27 .78% (male) ,25 .44% -36 .03% (female) .Conclusion The standard estimate error of anthropometry pa‐rameters in the prediction of VFA was significant .QCT is a more accurate measurement of VFA ,and it has the potential of clinical application .