Comparison of Body Mass Index and fat percentage criteria classification of 7–13 year-old rural boys in South Africa

Table 3 Correlation between Body Mass Index (BMI), Fat percentage (Fat %) and Maturity Age (MA) for 7–13 year old boys (controlled for Maturity Age (MA))

Age groups	BMI vs. Fat % (Controlling for MA)		BMI vs. MA		Fat % vs. MA
Age groups	*r-value*	*p-value*	*r-value*	*p-value*	*r-value*	*p-value*
7 year old	0.69†	0.00*	-0.23	0.00*	-0.20	0.10
8 year old	0.45†	0.00*	-0.36	0.00*	-0.32	0.04*
9 year old	0.75†	0.00*	-0.44	0.00*	-0.48†	0.00*
10 year old	0.77†	0.00*	-0.51†	0.00*	-0.39	0.00*
11 year old	0.70†	0.00*	-0.52†	0.00*	-0.33	0.01*
12 year old	0.71†	0.00*	-0.64†	0.00*	-0.49†	0.00*
13 year old	0.54†	0.00*	-0.46†	0.00*	-0.25	0.03*

Low correlation r = 0.1; medium r = 0.3; high correlation r = 0.5†; statistical significance *p ≤ 0.05

ISSN: 1471-2431