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%.

Scientific Claim

Cross-validation of QCT-based prediction equations for total body fat percentage in Chinese men shows a mean difference of 1.31% and limits of agreement from -4.08% to 6.71% compared to DXA measurements.

Original Statement

“Predicted TBF% Male (L1/L2) -5.00 1.145 0.87 2.68 1.31 -4.08 to 6.71”

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

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

probability

Can suggest probability/likelihood

Assessment Explanation

The claim accurately reports statistical validation metrics without implying clinical utility beyond the study population, which is appropriate for observational data.

Evidence from Studies

Supporting (1)

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

Cross-Sectional Study

Human

2024 Feb 14

Contradicting (0)

No contradicting evidence found

Source Study

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

Score: 54

DOI: 10.1186/s12944-024-02034-y

Similar Assertions

When testing the upper body fat prediction equations in women, the average difference from DXA measurements was small (0.47%), with most predictions falling within a range of -6.43% to 7.38%.

86%

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.

83%

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.

82%

For Chinese women, using belly fat measurements from a CT slice at the L5/S1 level along with body weight can predict total body fat with 81% accuracy compared to DXA scans.

81%

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.

80%