Table 2.
Demographics of Student Respondents in 4‐ Versus 5‐Day School Schedules (2007‐2015)
| Four‐Day (N = 4700) | Five‐Day (N = 99,408) | p‐Value | |
|---|---|---|---|
| Age, years (mean ± SD) | 15.3 ± 1.6 | 15.0 ± 1.6 | <.001 |
| Grade (%) | |||
| 8th | 48.3 ± 50.0 | 56.0 ± 49.6 | <.001 |
| 11th | 51.7 ± 50.0 | 44.0 ± 49.6 | <.001 |
| Sex (% female) | 49.0 ± 50.0 | 50.5 ± 50.0 | .049 |
| Race/ethnicity (%) | |||
| Non‐Hispanic white | 78.9 ± 40.8 | 71.2 ± 45.3 | <.001 |
| Non‐Hispanic black | 0.8 ± 9.0 | 2.4 ± 15.3 | <.001 |
| Hispanic | 5.5 ± 22.8 | 10.9 ± 31.1 | <.001 |
| Other/multi‐racial | 19.0 ± 39.2 | 23.3 ± 42.3 | <.001 |
| Sexual orientation (%) | |||
| Heterosexual | 92.5 ± 26.4 | 90.7 ± 29.0 | <.001 |
| LGB | 7.5 ± 26.4 | 9.3 ± 29.0 | <.001 |
| Free/reduced lunch eligibility (%) | 40.0 ± 49.0 | 38.5 ± 48.7 | .155 |