School start times and racial disparities in early adolescent sleep.

ABSTRACT:

Objectives

Many communities in the United States are delaying school start times to improve youth sleep. Racial disparities exist in sleep. The extent to which school start times are associated with racial disparities in sleep is unclear, especially in early adolescent populations that are not the focus of research on school start times. This study examined the associations between school start times and actigraphy-assessed sleep, including duration, onset, and offset times among a national sample of racially diverse early adolescents.

Methods

In a national sample of 3522 early adolescents (M_age = 11.49, SD_age = 0.50; 2123 (60.3%) non-Hispanic White, 316 (8.7%) Black or African American, 768 (21.6%) Hispanic or Latinx American, 104 (2.9%) Asian American

SUBMITTER: Yip T 

PROVIDER: S-EPMC12418717 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature