Table 1.
Baseline characteristics from the Family Life, Activity, Sun, Health, and Eating (FLASHE) Study.
| Weekday sleep duration, hours/day | |||||
|---|---|---|---|---|---|
| < 7 (n = 75) | 7–8 (n = 247) | 8–9 (n = 411) | 9–10 (n = 357) | 10+ (n = 164) | |
| Gender (%) | |||||
| Female | 49.33 | 50.61 | 52.55 | 46.78 | 52.44 |
| Male | 50.67 | 49.39 | 47.45 | 53.22 | 47.56 |
| Age, mean (SD), years | 15.28 (1.41) | 15.19 (1.32) | 14.64 (1.54) | 13.92 (1.61) | 13.77 (1.55) |
| Race/ethnicity (%) | |||||
| Hispanic | 12.00 | 9.31 | 8.52 | 8.96 | 10.37 |
| Black or African American | 21.33 | 20.24 | 15.57 | 14.01 | 12.20 |
| White only | 53.33 | 61.94 | 65.69 | 67.51 | 66.46 |
| Other | 12.00 | 8.10 | 8.76 | 8.96 | 9.76 |
| School type (%) | |||||
| Public | 90.67 | 88.66 | 88.81 | 80.39 | 69.51 |
| Private | 6.67 | 8.50 | 6.81 | 9.80 | 4.27 |
| Home-schooled | 2.67 | 1.21 | 2.92 | 6.16 | 23.17 |
| Other | 0.00 | 1.62 | 1.46 | 3.08 | 3.05 |
| Parental marital status (%) | |||||
| Married | 72.00 | 70.85 | 71.53 | 72.83 | 75.61 |
| Divorced-widowed or separated | 14.67 | 13.77 | 12.65 | 10.08 | 9.15 |
| Never married | 6.67 | 9.72 | 7.06 | 9.24 | 8.54 |
| Member of unmarried couple | 5.33 | 4.05 | 7.06 | 5.88 | 3.66 |
| Home ownership (%) | |||||
| Own | 73.33 | 73.28 | 72.75 | 72.27 | 68.29 |
| Not own | 25.33 | 24.7 | 25.55 | 25.77 | 29.88 |
| Parental education (%) | |||||
| Less than high school degree | 0.00 | 1.21 | 0.73 | 1.40 | 2.44 |
| High school degree or GED | 16.00 | 15.38 | 17.76 | 13.45 | 18.90 |
| Some college but no degree | 26.67 | 31.98 | 32.60 | 36.69 | 37.20 |
| 4-year college degree or higher | 54.67 | 51.01 | 47.45 | 46.78 | 40.85 |
| Daily frequency of detrimental food (servings) (%) | 2.77 (7.95) | 3.53 (4.63) | 3.78 (4.68) | 3.42 (6.08) | 3.64 (5.63) |
| Daily frequency of beneficial food (servings) (%) | 5.71 (5.36) | 4.21 (4.24) | 4.44 (4.8) | 4.89 (5.16) | 5.28 (4.76) |
| MVPA, mean (SD), min/week (%) | 613.8 (125.42) | 625.52 (109.92) | 667.29 (117.4) | 717.24 (117.03) | 733.01 (124.19) |
| Television time (%) | |||||
| Really don't watch | 10.67 | 6.88 | 5.60 | 6.72 | 9.76 |
| < 1 h | 20.00 | 16.19 | 17.27 | 19.89 | 18.90 |
| 1–2 h | 25.33 | 31.58 | 36.74 | 36.41 | 23.17 |
| 2–3 h | 13.33 | 21.86 | 24.57 | 16.53 | 23.78 |
| > 3 h | 18.67 | 18.22 | 12.41 | 11.48 | 6.71 |
| BMI (%) | |||||
| Underweight | 5.33 | 3.24 | 4.62 | 3.92 | 7.32 |
| Healthy weight | 60.00 | 71.26 | 69.34 | 69.19 | 70.12 |
| Overweight | 16.00 | 13.77 | 15.33 | 14.85 | 9.76 |
| Obese | 18.67 | 11.74 | 10.71 | 12.04 | 12.80 |
BMI body mass index [weight (kg)/height (m2)], GED general education development, MVPA moderate-vigorous physical activity, SD standard deviation.
Because of missing values for some categories total number may not add up to 1,254 or 100%