Table 3.

Comparison of proportions of obesity under body mass index and body fat assessments at different ages.

		Obesity Proportion, %
Age, y	n	Body Fat	Body Mass Index	P
11	123	13.01	26.02	< 0.0001
12	825	10.06	20.00	< 0.0001
13	2105	6.98	14.87	< 0.0001
14	7251	5.90	12.41	< 0.0001
15	8778	5.79	12.87	< 0.0001
16	7751	5.92	13.77	< 0.0001
17	5677	5.28	12.47	< 0.0001
18	1036	5.50	14.38	< 0.0001
19	49	2.04	12.24	0.0253