Table 4.

Agreement data for percent fat derived using TGV prediction equations

	Regression			Residual Plot
	R2	SEE	r	P	Mean difference(95%CI)
European American
Girls
%FAT(adult)	0.97	1.52	0.07	0.65	2.5 (5.6;0.6)
%FAT (child-specific)	0.98	1.36	0.25	0.11	0.3 (3.3;-2.6)
Boys
%FAT (adult)	0.97	1.84	0.19	0.44	1.4 (5.2;-2.5)
%FAT (child-specific)	0.98	1.60	0.27	0.27	0.1 (3.6;-3.3)
African American
Girls
%FAT (adult)	0.98	1.20	-0.01	0.78	2.8 (5.2;0.5)
%FAT (child-specific)	0.98	1.11	0.19	0.38	0.8 (3.1;-1.5)
Boys
%FAT (adult)	0.99	1.16	-0.19	0.42	1.0 (3.3;-1.2)
%FAT (child-specific)	0.99	1.13	-0.20	0.41	-0.1 (2.1;-2.4)
European
Girls
%FAT (adult)	0.96	1.09	-0.00	0.97	1.7 (5.3;-2.0)
%FAT (child-specific)	0.95	1.24	0.28	0.11	0.1 (2.5;-2.4)
Boys
%FAT (adult)	0.95	1.86	0.22	0.12	-0.7 (3.0;-4.35)
%FAT (child-specific)	0.98	1.16	0.04	0.77	-0.8 (2.4;-4.1)

%FAT; percent body fat by air-displacement plethysmography.

%FAT(adult); Percent body fat derived using thoracic gas volume predicted from adult-based proprietary equations (developed using Crapo et al. prediction of functional residual capacity and tidal volume constants for males and females) [18].

%FAT (child-specific); Percent body fat derived using thoracic gas volume predicted from child-specific equations by Fields et al. [16].

Dependent variable is percent body fat derived using measured thoracic gas volume.

r; The Pearson correlation coefficient between the regression residuals and the criterion; criterion is percent body fat from measured thoracic gas volume).

P value indicates if the r value is significant and hence, the presence of bias.

SEE; Standard error of the estimate.