Table 2.
Study participants by parent study
| Study name | N | Mean age (years) (SD, range) | % Female | % White | % Black | % Hispanic/Latino | % Asian | % Multiracial | % Other |
|---|---|---|---|---|---|---|---|---|---|
| Children’s Report of Sleep Patterns (CRSP) Validation | 82 | 9.9 (1.4, 8–12)a | 52.4 | 79.3 | 7.3 | 9.8 | 2.4 | 1.2 | — |
| Intrinsic Period | 39 | 14.7 (2.4, 9.6–17.8) | 51.3 | 89.7 | — | — | — | 7.7 | 2.6 |
| Sleep Patterns | 45 | 12.1 (0.5, 11.0–13.0) | 66.7 | 31.1 | 20.0 | 22.2 | — | 2.2 | 24.4 |
| Sleep and Development | 74 | 13.1 (3.1, 9.2–17.8) | 45.9 | 71.6 | 10.8 | 6.8 | — | 9.5 | 1.4 |
| Food Choices | 43 | 13.7 (0.9, 12.3–15.9) | 44.2 | 69.8 | 9.3 | 14.0 | — | — | 7.0 |
| NSF Light Study | 17 | 12.4 (1.3, 10.5–14.7) | 64.7 | 47.1 | 35.3 | 17.6 | — | — | — |
| Young Adolescent Sleep- Smart Pacesetter Program (YASS) | 130 | 12.5 (0.6, 11.0–15.0) | 60.8 | 53.7 | 8.1 | 24.4 | 7.3 | 2.4 | 4.1 |
| The Prevalence and Cross- Cultural Comparison of Daytime Sleepiness in Adolescentsb | 241 | 15.6 (0.9, 13.8–17.4) | 46.9 | — | — | — | — | — | — |
aAge data were collected in whole numbers.
bRace data were not collected for the Australian study.