|
Variable
|
Obese (n = 91)
|
Controls (n = 51)
|
p value
|
|---|
|
Age, years (median)
|
12.2
|
14.5
|
<0.001
|
|
Range
|
10.2 to 17.6
|
10.2 to 17.9
| |
|
Sex, % male
|
35.2
|
37.3
|
0.80
|
|
Race, % black
|
64.8
|
64.7
|
0.99
|
|
% Tanner 4 or 5
|
47.7
|
70.6
|
0.055
|
|
Physical activity (mean cpm, sd)*
|
272.8 ± 108.2
|
255.6 ± 92.3
|
0.38
|
|
BMI (mean)
|
33.9 ± 4.90
|
19.70 ± 2.00
|
<0.001
|
|
Range
|
26.3 to 49.6
|
15.1 to 23.2
| |
|
BMI-Z- score (mean)
|
2.38 ± 0.23
|
- 0.02 ± 0.62
|
<0.001
|
|
Range
|
1.93 to 2.88
|
-1.54 to 0.99
| |
- Statistical analysis for continuous variables was performed using t-tests for normally distributed variables. For categorical variables, the Chi 2 test was used. SD = standard deviation.
- Physical activity is in counts per minute (cpm) of physical activity.
- *Physical activity data were available on 125 subject (obese = 82, non obese = 43).
- Body Mass index (BMI).
- BMI-Z-score adjusted for age and gender based on US 2000 CDC growth charts.
