Table 1.
Subject characteristics and comparison of obese to normal weight subjects.
| All (n = 47) |
Obese (n = 22) |
Normal weight (n = 25) |
|
|---|---|---|---|
| Age, years | 14.9 ± 1.7 | 15.0 ± 1.7 | 14.9 ± 1.7 |
| BMI, percentile⁎ | 74 ± 28 | 99 ± 1 | 53 ± 22 |
| Body fat, %⁎ | 36 ± 11 | 45 ± 6 | 27 ± 7 |
| PAQsum | 2.4 ± 0.8 | 2.3 ± 0.9 | 2.4 ± 0.8 |
| Gender, female | 26 (55) | 11 (50) | 15 (60) |
| Tanner stage | |||
| 2–3 | 8 (17) | 5 (23) | 3 (12) |
| 4–5 | 39 (83) | 17 (77) | 22 (88) |
| OCN, ng/mL | 14 (11–18) | 16 (13–20) | |
| BAP, U/L | 64 (46–88) | 61 (45–82) | |
| Si⁎, (mU/L)− 1 min− 1 | 1.5 (1.2–1.8) | 4.1 (3–5) |
Values are mean ± SD for non-skewed variables, geometric mean (95% confidence interval) for skewed variables, or N(%) for categorical variables.
BMI = body mass index; PAQsum = Physical Activity Questionnaire summation score; OCN = osteocalcin; BAP = bone specific osteocalcin; Si = insulin sensitivity.
Study completed in Minneapolis 2010–2012.
⁎
Significant differences (p < 0.05) between obese vs. normal weight subjects.