Fig. 2

Bland–Altman plots used in the validation group for cross-validation. Dashed lines represent the limits of agreement (mean difference ± 1.96 SDs) and solid lines represent the mean difference between the predicted and measured values. a-d: Cross-validation of the predictive equations in men; e-g: cross-validation of the predictive equations in women. TBF%, total body fat percentage; SD, standard deviation