When measuring belly fat volume, QCT and DXA scans give very similar results in Chinese men and women, with men showing almost perfect agreement and women showing very strong agreement.

In Chinese men and women, measuring belly fat with QCT scans is closely related to total body fat measured by DXA scans, with the strength of the relationship varying by sex and where the belly scan is taken.

When testing the belly fat prediction equations in men, the average difference from DXA measurements was small (1.31%), with most predictions falling within a range of -4.08% to 6.71%.

For Chinese men, combining belly fat measurements from a single CT slice at the L1/L2 level with BMI can accurately estimate total body fat, accounting for 83% of the variation seen in DXA scans.

For Chinese men, combining belly fat measurements from a CT slice at the L1/L2 level with BMI can predict upper body fat distribution with 90% accuracy compared to DXA scans.

For Chinese women, belly fat measurements from a CT slice at the L3/L4 level combined with BMI can predict upper body fat distribution with 86% accuracy compared to DXA scans.