Table 1.
Mean (SD) or % for Student Characteristics by Moderately and Severely Obese Weight Categories at Baseline (6th Grade)
| Moderately Obese 100–119% of 95th percentile (N=845) | Severely Obese ≥ 120% of 95th percentile (N=460) | P-value* | ||
|---|---|---|---|---|
|
| ||||
| Age | years | 11.2 (0.6) | 11.3 (0.5) | 0.0789 |
|
| ||||
| Sex | Male | 52.7% | 54.6% | 0.5399 |
| Female | 47.3% | 45.4% | ||
|
| ||||
| Race/Ethnicity | Hispanic | 60.0% | 58.9% | 0.9407 |
| NH Black | 17.6% | 17.8% | ||
| NH White | 15.0% | 15.4% | ||
| Other | 7.3% | 7.8% | ||
|
| ||||
| Head of Household Education** | < High School | 26.5% | 31.5% | 0.1125 |
| High School Grad | 28.3% | 23.3% | ||
| Some College | 26.7% | 27.6% | ||
| ≥ College Degree | 16.8% | 14.8% | ||
|
| ||||
| Pubertal Development** | Stage 1 | 9.9% | 8.9% | 0.2901 |
| Stage 2 | 25.3% | 23.3% | ||
| Stage 3 | 38.7% | 38.3% | ||
| Stage 4 | 20.7% | 21.1% | ||
| Stage 5 | 3.0% | 3.7% | ||
|
| ||||
| HEALTHY Study | Control School | 50.6% | 49.1% | 0.9941 |
| Intervention Group | Intervention School | 49.4% | 50.9% | |
|
| ||||
| BMI | kg/m2 | 26.7 (1.6) | 33.1 (3.5) | <.0001 |
| Percentile (%) | 97.1 (1.0) | 99.1 (0.3) | <.0001 | |
| Z-score | 1.9 (0.2) | 2.4 (0.2) | <.0001 | |
|
| ||||
| Waist Circumference | cm | 88.1 (6.6) | 103.0 (9.2) | <.0001 |
| ≥ 90th Percentile | 76.2% | 99.3% | <.0001 | |
|
| ||||
| SBP | mmHg | 110.2 (9.7) | 112.0 (11.1) | 0.0018 |
| DBP | mmHg | 66.0 (7.8) | 70.4 (8.6) | <.0001 |
| Blood Pressure | ≥ 90th or 120/80 | 23.8% | 37.4% | <.0001 |
|
| ||||
| Glucose | mg/dl | 94.6 (6.5) | 94.2 (6.7) | 0.3075 |
| ≥ 100 | 20.4% | 19.8% | 0.7791 | |
|
| ||||
| Insulin | μU/ml*** | 17.9 (10.8) | 28.7 (19.9) | <.0001 |
| ≥ 30 | 10.4% | 35.7% | <.0001 | |
|
| ||||
| Total Cholesterol | mg/dl | 160.5 (29.9) | 161.2 (28.3) | 0.6190 |
| ≥ 200 | 9.5% | 8.5% | 0.5535 | |
|
| ||||
| LDL | mg/dl | 91.7 (24.9) | 92.5 (23.5) | 0.5745 |
| ≥ 130 | 6.6% | 6.3% | 0.8243 | |
|
| ||||
| HDL | mg/dl | 47.1 (9.9) | 43.8 (9.3) | <.0001 |
| ≤ 40 | 27.2% | 38.9% | <.0001 | |
|
| ||||
| Triglycerides | mg/dl*** | 108.8 (59.3) | 125.9 (70.9) | <.0001 |
| ≥ 130 | 26.6% | 34.3% | 0.0037 | |
*
P-values are from generalized linear mixed models comparing the 2 baseline weight categories and including a random effect to account for the original school intervention cluster. Due to the number of comparisons, p<.001 was considered significant.
**
2% of the sample had missing data for highest education level of head of household and 3% had missing data for pubertal development stage.
***
Testing was performed on the log transform to normalize the distribution.