Table 2.
Descriptive statistics of 8261 respondents: Teen Sleep Habits Survey, 2010–2013
| n | % | |
|---|---|---|
| Age (y), mean ± SE | 6.0 ± 0.01 | |
| Female | 4223 | 51.1 |
| Race/ethnicity | ||
| White | 6047 | 73.2 |
| Hispanic | 730 | 8.8 |
| Asian | 489 | 5.9 |
| Black | 344 | 4.2 |
| Other | 229 | 2.8 |
| Multiracial | 422 | 5.1 |
| Grade level | ||
| 9 | 2313 | 28 |
| 10 | 2271 | 27.5 |
| 11 | 1999 | 24.2 |
| 12 | 1678 | 20.3 |
| School district | ||
| South Washington County, MN | 3547 | 42.9 |
| Boulder, CO | 2250 | 27.2 |
| Teton County, WY | 905 | 11.0 |
| Saint Louis Park, MN | 845 | 10.2 |
| Mahtomedi, MN | 714 | 8.6 |
| Usual academic grades | ||
| A’s and B’s or higher | 5249 | 63.5 |
| B’s or lower | 3012 | 36.5 |
| Use of medication to help with concentration or a learning disability | ||
| No | 7507 | 90.9 |
| Yes | 754 | 9.1 |