Table 3. Age and biological maturation-adjusted means±standard errors for height, weight and BMI in boys and girls (8–15 years) by year of evaluation, and results of pairwise comparisons.

	1992	1999	2012
	Mean±SE	Mean±SE	Mean±SE	F	p-value	Pairwise comparisons
Boys
Height	142.5±0.4	146.4±0.3	145.3±0.3	30.6	<0.001	92<99;92<12;99>12
Weight	33.7±0.4	35.7±0.2	38.1±0.3	47.6	<0.001	92<99<12
BMI	16.2±0.1	16.3±0.1	17.7±0.1	69.7	<0.001	92 = 99;92<12;99<12
Girls
Height	144.0±0.5	147.1±0.3	144.2±0.3	33.6	<0.001	92<99;92 = 12;99>12
Weight	38.3±0.5	39.3±0.3	38.8±0.3	1.9	0.146	92 = 99 = 12
BMI	17.9±0.2	17.7±0.1	18.4±0.1	8.0	<0.001	92 = 99;92 = 12;99<12