. 2016 Aug 1;12(4):314–323. doi: 10.1089/chi.2015.0020

Table 3.

Comparison of Adjusted R² and RMSE From Regression Comparing the Predicted Percent Body Fat from Each Equation and DXA-Measured Percent Body Fat

	Bray, 2001			Dezenberg, 1999
	Subscapular	Triceps	Subscapular + triceps	No race	With race	Goran, 1996	Loftin, 2007	Slaughter, 1988
Published^a	0.77	0.81	0.45	0.95	0.95	0.88	0.88	0.78
Adjusted R²
Matched sample^b	0.680	0.793	0.808	0.736	0.704	0.747	0.777	0.742
Full sample^c	0.530	0.724	0.712	0.495	0.491	0.674	0.633	0.738
By sex^d
Boys	0.487	0.717	0.693	0.471	0.343	0.643	0.618	0.727
Girls	0.620	0.701	0.732	0.612	0.587	0.673	0.755	0.739
RMSE
Matched sample	4.463	3.589	3.453	3.775	3.995	3.375	3.252	4.110
Full sample	5.567	4.269	4.358	5.770	5.789	4.639	4.922	4.156
By sex
Boys	5.258	4.020	4.121	5.235	6.273	4.459	4.758	3.913
Girls	4.404	3.746	3.625	4.563	4.292	3.988	3.904	3.542

^{^a}

R² extracted from the published equation article.

^{^b}

NHANES population matched on race/ethnicity, sex, and age to the original development population for each equation. Sample sizes varied for each equation. Bray, n = 1242; Dezenberg, n = 1050; Goran, n = 303; Loftin, n = 2011; Slaughter, n = 5100.

^{^c}

Full NHANES data set for youth of all race/ethnicities, and sexes who are between 8 and 18 years old (n = 8679).

^{^d}

Boys, n = 5046; girls, n = 3633.

RMSE, root mean square error; DXA, dual-emission X-ray absorptiometry; NHANES, National Health and Nutrition Examination Survey.