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. Author manuscript; available in PMC: 2013 Aug 9.

Published in final edited form as: Obesity (Silver Spring). 2009 Jan 22;17(5):1003–1008. doi: 10.1038/oby.2008.598

Table 1.

Descriptive statistics for girls measured in both 6^th and 8^th grades

	6^th Grade (N=984)	8^th Grade (N=984)	Change
Age (yrs)	11.9 (0.4)	13.9 (0.4)	2.0 (0.1)
BMI (kg/m²)	20.7 (4.7)	22.6 (5.2)	1.9 (1.9)
BMI > 85^th percentile	33.3%	34.7%	1.4%
BMI > 95^th percentile	16.3%	17.1%	0.8%
% Body Fat (%)	27.9 (9.1)	31.3 (8.3)	3.4 (4.7)
%BF < 30%	60.7%	45.7%	−15.0%
%BF 30-35%	15.9%	18.7%	2.8
%BF > 35%	23.5%	35.6%	12.1%
Sedentary (min)	461 (67)	512 (64)	51.5
Light (min)	345 (57)	298 (50)	−46

Values expressed as Mean (SD) or Prevalence (%).