Fig. 4

Bland-Altman analysis of the agreement between methods for the change of percentage of fat mass. The middle-dotted line represents the mean differences between the values obtained by the predictive equation and DXA. The upper and lower dotted line represents the 95% limits of agreement (± 1.96 standard deviation). The blue line represents the degree of association between the differences of the methods and the mean of both methods, as illustrated by the coefficient of correlation (r)