Changing school start times: impact on sleep in primary and secondary school students.

ABSTRACT:

Study objectives

To examine the impact of changing school start times on sleep for primary (elementary school: ES) and secondary (middle and high school: MS/HS) students.

Methods

Students (grades 3-12) and parents (grades K-12) were surveyed annually, before and for 2 years after school start time changes (ES: 60 min earlier, MS: 40-60 min later; HS: 70 min later). Student sleep and daytime sleepiness were measured with school-administered student surveys and parent-proxy online surveys.

Results

Approximately 28,000 students annually completed surveys (~55% White, ~21% free/reduced lunch [FRL]). One-year post-change, weekday bedtimes and wake times were slightly earlier for ES students, with an 11-min decrease in sleep duration. MS and HS students reported slightly la

SUBMITTER: Meltzer LJ 

PROVIDER: S-EPMC8271142 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature