Table 1.
Participant Characteristics, Baseline, End-of-Study, and Change Means ± SD or Frequency and Percent (N = 3514)
| Overall | Boys | Girls | ||||
|---|---|---|---|---|---|---|
| N | % | N | % | N | % | |
| Race/Ethnicity | ||||||
| Hispanic | 2113 | 60.1% | 1002 | 59.9% | 1111 | 60.3% |
| Black | 663 | 18.9% | 298 | 17.8% | 365 | 19.8% |
| White | 738 | 21.0% | 372 | 22.2% | 366 | 19.9% |
| 8th Grade Tanner Stage | ||||||
| Tanner 1 | 24 | 0.7% | 22 | 1.3% | 2 | 0.1% |
| Tanner 2 or 3 | 1073 | 30.5% | 957 | 57.2% | 116 | 6.3% |
| Tanner 4 or 5 | 2417 | 68.8% | 693 | 41.4% | 1724 | 93.6% |
| Highest Household Education | ||||||
| No HS Diploma | 983 | 28.0% | 463 | 27.7% | 520 | 28.2% |
| Some college | 1873 | 53.3% | 869 | 52.0% | 1004 | 54.5% |
| College grad or higher | 658 | 18.7% | 340 | 20.3% | 318 | 17.3% |
| 6th Grade | 8th Grade | 8th-6th Change | ||||
| Mean ± SD | Mean ± SD | Mean ± SD | p-value | |||
| BMI Percentile | 73.32 ± 27.73 | 72.78 ± 26.33 | −0.54 ± 12.88 | 0.0132 | ||
| Boys | 74.56 ± 27.96 | 72.34 ± 27.65 | −2.22 ± 12.79 | <.0001 | ||
| Girls | 72.20 ± 27.48 | 73.19 ± 25.08 | 0.99 ± 12.77 | 0.0009 | ||
| Fitness (number of laps) | 21.27 ± 12.16 | 27.55 ± 17.36 | 6.28 ± 13.91 | <.0001 | ||
| Boys | 23.90 ± 14.07 | 34.95 ± 19.61 | 11.05 ± 15.91 | <.0001 | ||
| Girls | 18.88 ± 9.52 | 20.83 ± 11.44 | 1.95 ± 10.00 | <.0001 | ||
| Insulin (µU/mL) | 13.28 ± 11.44 | 17.29 ± 14.53 | 4.01 ± 13.51 | <.0001 | ||
| Boys | 12.22 ± 12.15 | 16.85 ± 16.21 | 4.63 ± 15.01 | <.0001 | ||
| Girls | 14.24 ± 10.68 | 17.70 ± 12.82 | 3.46 ± 11.96 | <.0001 | ||
| Glucose (mg/dL) | 93.63 ± 6.54 | 94.04 ± 8.51 | 0.40 ± 8.32 | 0.0041 | ||
| Boys | 94.53 ± 6.51 | 95.98 ± 8.11 | 1.45 ± 8.07 | <.0001 | ||
| Girls | 92.82 ± 6.45 | 92.27 ± 8.48 | −0.55 ± 8.44 | 0.0053 | ||
| Total Cholesterol (mg/dL) | 157.18 ± 27.54 | 148.07 ± 26.77 | −9.12 ± 21.28 | <.0001 | ||
| Boys | 159.17 ± 28.60 | 145.32 ± 27.65 | −13.85 ± 21.36 | <.0001 | ||
| Girls | 155.38 ± 26.42 | 150.56 ± 25.69 | −4.82 ± 20.28 | <.0001 | ||
| HDL-C (mg/dL) | 52.35 ± 12.22 | 51.45 ± 12.36 | −0.90 ± 9.17 | <.0001 | ||
| Boys | 52.80 ± 12.39 | 49.44 ± 11.95 | −3.36 ± 8.77 | <.0001 | ||
| Girls | 51.94 ± 12.05 | 53.27 ± 12.45 | 1.33 ± 8.95 | <.0001 | ||
| LDL-C (mg/dL) | 86.92 ± 23.20 | 80.04 ± 22.33 | −6.88 ± 17.15 | <.0001 | ||
| Boys | 88.74 ± 23.89 | 78.92 ± 23.06 | −9.82 ± 17.53 | <.0001 | ||
| Girls | 85.26 ± 22.43 | 81.05 ± 21.60 | −4.22 ± 16.36 | <.0001 | ||
| Triglycerides (mg/dL) | 89.89 ± 52.08 | 83.22 ± 47.75 | −6.67 ± 46.60 | <.0001 | ||
| Boys | 88.40 ± 52.37 | 85.40 ± 56.02 | −3.00 ± 50.15 | 0.0144 | ||
| Girls | 91.24 ± 51.79 | 81.24 ± 38.64 | −9.99 ± 42.86 | <.0001 | ||
| Systolic Blood Pressure (mmHg) | 107.45 ± 10.16 | 111.18 ± 10.50 | 3.73 ± 10.96 | <.0001 | ||
| Boys | 108.04 ± 10.26 | 114.36 ± 10.42 | 6.32 ± 10.59 | <.0001 | ||
| Girls | 106.91 ± 10.05 | 108.28 ± 9.71 | 1.37 ± 10.75 | <.0001 | ||
| Diastolic Blood Pressure (mmHg) | 63.75 ± 8.68 | 64.67 ± 7.94 | 0.91 ± 9.35 | <.0001 | ||
| Boys | 63.67 ± 8.66 | 63.97 ± 7.97 | 0.31 ± 9.32 | 0.1807 | ||
| Girls | 63.83 ± 8.69 | 65.30 ± 7.87 | 1.47 ± 9.35 | <.0001 | ||
| Waist Circumference (cm) | 76.06 ± 14.60 | 80.87 ± 14.65 | 4.81 ± 6.64 | <.0001 | ||
| Boys | 76.41 ± 15.47 | 80.91 ± 15.59 | 4.51 ± 6.78 | <.0001 | ||
| Girls | 75.74 ± 13.77 | 80.82 ± 13.73 | 5.08 ± 6.49 | <.0001 | ||