Table 3.
Influence of BMI percentile category on characteristics of participating children
| Classification BMI percentiles | At risk of overweight 85-95th | Overweight & Obese | ||
|---|---|---|---|---|
| 95.001-99 th | > 99 th | p-value1 | ||
| Sample size, n | 24 | 48 | 49 | |
| Anthropometrics | Mean (SEM) | |||
| Age (years) | 10.5 (0.2) | 10.8 (0.1) | 10.7 (0.1) | 0.412 |
| Pubertal stage | 2.75 (0.3) | 3.14(0.2) | 2.95 (0.2) | 0.574 |
| Height (cm) | 147.3 (1.8) | 150.2 (1.3) | 152.1 (1.3) | 0.118 |
| Weight (kg) | 46.6 (1.5) | 61.0 (1.4) | 80.5 (2.6) | < 0.001 |
| BMI-z score | 1.34 (0.4) | 2.03 (0.03) | 2.54 (0.02) | < 0.001 |
| WC (cm) | 71.8 (1.4) | 86.9 (1.19) | 102.4 (1.8) | < 0.001 |
| Plasma lipoproteins, mg/dl | ||||
| TC | 177.7 (7.0) | 161.1 (4.1) | 170.5 (4.9) | 0.100 |
| HDL-C | 62.2b (2.8) | 53.0a (1.4) | 50.8a (1.5) | < 0.001 |
| VLDL-C | 15.6 (0.9) | 15.2 (0.5) | 16.9 (0.5) | 0.099 |
| IDL-C | 9.38 (1.0) | 8.33 (0.6) | 10.1 (0.6) | 0.172 |
| LDL-C | 100.1 (6.2) | 92.9 (3.6) | 102.7 (4.3) | 0.227 |
| TAG | 59.5a (4.5) | 68.5a, b (3.8) | 81.5b (4.5) | 0.005 |
| Lp(a)-C | 10.7b (0.9) | 7.75a (0.5) | 6.71a (0.5) | < 0.001 |
1Differences determined using two-tailed t-test following Levene's test for equality of variances. Groups sharing a common superscript are not significantly different from each other using Tukey's studentized range test at a 5% procedure-wise error rate
Abbreviations: Body mass index: BMI, Body mass index z-score: BMIz, Waist circumference: WC, Total cholesterol: TC, High density lipoprotein cholesterol: HDL-C, Very low density lipoprotein cholesterol: VLDL-C, Intermediate density lipoprotein cholesterol: IDL-C, Low density lipoprotein cholesterol: LDL-C, Triglycerides: TAG, Lp(a)ccholesterol: Lp(a)-C