Table 1.
Demographic and anthropometric sample characteristics
| Girls (n =471) | Boys (n =407) | Total (N =878) | |
|---|---|---|---|
| Age (mean, SD) | 12.8 (1.3) | 12.7 (1.4) | 12.7 (1.3) |
| Ethnicity | |||
| Asian/Pacific Islander | 12 (2.5%) | 18 (4.4%) | 30 (3.4%) |
| African American | 27 (5.7%) | 31 (7.6%) | 58 (6.6%) |
| Native American Indian | 4 (0.8%) | 2 (0.5%) | 6 (0.7%) |
| Hispanic | 65 (13.8%) | 50 (12.3%) | 115 (13.1%) |
| Non-Hispanic white | 274 (58.2%) | 234 (57.5%) | 508 (57.9%) |
| Multi-ethnic/other | 89 (18.9%) | 72 (17.7%) | 161 (18.3%) |
| Highest household education level | |||
| < High school to Associate degree | 176 (37.4%) | 113 (27.8%) | 289 (32.9%) |
| Bachelors degree | 123 (26.1%) | 128 (31.4%) | 251 (28.6%) |
| ≥ Graduate or professional school | 164 (34.8%) | 154 (37.8%) | 318 (36.2%) |
| Did not report | 8 (1.7%) | 12 (2.9%) | 20 (2.3%) |
| Height (centimeters) * | 156.3 (8.0) | 158.6 (11.6) | 157.4 (9.9) |
| Weight (kilograms) * | 59.1 (17.8) | 58.7 (19.4) | 59.0 (18.5) |
| BMI * | 24.0 (6.5) | 23.5 (6.4) | 23.6 (6.3) |
| BMI category | |||
| < 85th percentile | 248 (52.7%) | 228 (56.2%) | 476 (54.3%) |
| ≥ 85th percentile | 223 (47.3%) | 178 (43.8%) | 401 (45.7%) |
| MVPA min/daya | 50.0 (24.2) | 67.6 (30.8) | 58.2 (28.8) |
| Servings of fruit or vegetables/day* | 2.9 (1.6) | 3.2 (2.1) | 3.1 (1.8) |
| Kcals from fat per day, % | 32.8 (6.0) | 32.5 (6.0) | 32.7 (6.0) |
| Television time on non-school days, min/d | 127.8 (92.8) | 123.4 (92.7) | 125.7 (92.7) |
a
MVPA, moderate to vigorous physical activity, sample size n =770 (414 girls, 356 boys).
*
Mean and standard deviation.
BMI, body mass index