The effects from delayed school start on adolescent sleep, health and school performances

Recruiting

• Conditions: Sleep duration, mental health, BMI, academic performance; Not Applicable

• Registration Number: ISRCTN60202879
• Lead Sponsor: Kristianstad University

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2017-08-10
• Last Update Posted: 27 November 2017

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 5000

Inclusion Criteria

Adolescents (questionnaires and focus group interviews):
1. Upper secondary school student
2. Age: 16-19
3. Gender: all

Teachers and school health staff (focus group interviews):
1. Teachers in upper secondary school
2. Any age
3. Gender: all

Exclusion Criteria

Does not meet inclusion criteria

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
1. Sleep habits and sleep duration, assessed using the School Sleep Habits Survey (SSHS) late in September 2017, 2018, 2019, early in December 2017, late in May 2018, 2019<br>2. Grades, assessed using official records and survey questions from the SSHS every semester in conjunction with standard measure times<br>3. Attendance, assessed using school records and survey questions from the SSHS every semester in conjunction with standard measure times<br>4. Daytime sleepiness, assessed using SSHS late in September 2017, 2018, 2019, early in December 2017, late in May 2018, 2019<br>5. BMI, measured using school healthcare records (measured by nurse as part of standard school health appointment) annually