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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: Obesity (Silver Spring). 2011 Jun 23;20(1):118–125. doi: 10.1038/oby.2011.179

Table 1.

Descriptive characteristics of the sample at each data collection period.

Baseline, N=327 Two Year, N=276
Males Mean SD Mean SD
Age (years) 14.6 1.84 16.5 1.84
Body mass index (BMI) (kg/m2) 22.1 5.08 23.4 5.11
Percent body fat (PBF) (%) 16.2 9.58 16.3 8.98
Sugar sweetened beverages,
servings/day
1.02 1.01 1.03 1.15
Diet soda, servings/day 0.16 0.49 0.15 0.49
Fast food, purchases/ week 0.91 0.88 1.19 1.25
Breakfast meals, days/week 0.91 0.20 0.83 0.27
Energy intake (kilocalories/day) 2196.2 673.4 2229.6 723.1
Physical activity (minutes/day) 320.4 74.7 304.6 64.0
Puberty 2.58 0.67 3.23 0.64
White/Caucasian (%) 86.5% 89.1%
Parent college graduate (%) 78.3% 81.9%
Free or reduced lunch-eligible (%) 10.4% 7.2%
Baseline, N=339 Two Year, N=286
Females Mean SD Mean SD
Age (years) 14.6 1.83 16.6 1.86
Body mass index (BMI) (kg/m2) 21.9 4.91 22.8 4.55
Percent body fat (PBF) (%) 26.2 8.80 27.6 7.89
Sugar sweetened beverages,
servings/day
0.70 0.84 0.65 0.77
Diet soda, servings/day 0.18 0.48 0.25 0.69
Fast food, purchases/ week 0.94 1.20 1.15 1.42
Breakfast meals, days/week 0.88 0.22 0.84 0.28
Energy intake (kilocalories/day) 1776.5 512.9 1767.3 494.4
Physical activity (minutes/day) 299.6 64.1 280.3 52.2
Puberty 3.17 0.68 3.61 0.46
White/Caucasian (%) 83.8% 85.0%
Parent college graduate (%) 72.9% 76.2%
Free or reduced lunch-eligible (%) 12.1% 9.8%