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. 2012 Jul 3;303(5):E635–E643. doi: 10.1152/ajpendo.00078.2012

Table 2.

Comparison between the 3 ROI

Test ROI 1 ROI 2 ROI 3
Spearman
    r 0.961 0.94 0.975
    95% CI 0.93–0.97 0.90–0.96 0.95–0.98
    P <0.0001 <0.0001 <0.0001
Bland-Altman
    Bias 3.27 2.07 0.65
    SD 1.75 1.04 0.28

ROI, regions of interest; 95% CI, 95% confidence interval (n = 69).

Three ROI were used to calculate visceral fat by DEXA scan. ROI 1 extends from S3/S4 vertebral space to L5/L6 vertebral space. ROI 2 extends from S3/S4 vertebral space to L3/L4 vertebral space. ROI 3 extends from L1/L2 to L4/L5 vertebral space. Correlation coefficient (r) and bias were calculated for each area using Spearman's rank and Bland-Altman test, respectively, to evaluate the relationship between visceral fat obtained by DEXA scan and dissected visceral fat pad measured by direct weighing. ROI 3 shows the strongest correlation and the lowest bias.