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

Table 4 Kappa and McNemar measure of agreement between BMI and Fat percentage categorise for 7–13 year old rural boys

Age groups	Measure of agreement Kappa		McNemar test for significance
Age groups	Kappa (κ)	SoA	McNemar test for significance
7 year old	-0.26	Poor	0.00*
8 year old	0.57	Moderate	0.00*
9 year old	0.14	Slight	0.00*
10 year old	0.18	Slight	0.00*
11 year old	0.11	Slight	0.00*
12 year old	0.22	Fair	0.00*
13 year old	0.30	Fair	0.00*

SoA Strength of agreement, Kappa Strength of agreement: Poor = < 0.00; Slight = 0.00-0.20; Fair = 0.21–0.40; Moderate = 0.41–0.60; Substantial = 0.61–0.80; Almost perfect = 0.81-1.00
Significance = *p ≤ 0.05

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