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Register:	ISRCTN
Last refreshed on:	28 August 2023
Main ID:	ISRCTN17006300
Date of registration:	28/07/2015
Prospective Registration:	No
Primary sponsor:	Kristianstad University
Public title:	Sleep and lifestyle in school age children
Scientific title:	Sleep and lifestyle in school age children: a longitudinal study
Date of first enrolment:	15/08/2008
Target sample size:	1500
Recruitment status:	Completed
URL:	https://www.isrctn.com/ISRCTN17006300
Study type:	Observational
Study design:	Longitudinal design (Screening)
Phase:	Not Applicable

Countries of recruitment
Sweden

Contacts

Name:	Pernilla Garmy
Address:	Kristianstad University 29188 Kristianstad Sweden
Telephone:
Email:
Affiliation:

Name:
Address:
Telephone:
Email:
Affiliation:

Key inclusion & exclusion criteria

Inclusion criteria: Current version as of 21/03/2018:
All students in grades 1, 4, 8 and 10 in seven municipalities in southern Sweden.

Previous version:
All students at schools in the municipality of Lund in grades 1, 4, 8 and 10.
Exclusion criteria: Participants not meeting the inclusion criteria

Age minimum:
Age maximum:
Gender: Both

Health Condition(s) or Problem(s) studied

Sleep problems, obesity
Signs and Symptoms

Intervention(s)

This is a longitudinal survey study where we are investigating sleep duration, BMI and media habits with questionnaires and height and weight measures. Each observation takes approximately 20 minutes (a visit at the school nurse) and this is repeated 4 times (in grades 1, 4, 8 and 10).

Primary Outcome(s)

1. Sleep and media habits among school-aged children and adolescents. Survey at four time-points: grades 1, 4, 8 and 10. Survey questionnaire concerns sleep and media habits
2. Body Mass Index among school-aged children and adolescents. Height and lengths are measured by trained school nurses at four time-points: grades 1, 4, 8 and 10
3. Physical activity, body image and self-rated health among adolescents. Survey at two time-points: grades 8 and 10. Survey questionnaire concerns frequency of exercise, self-reported fitness, body image and self-rated health

Secondary Outcome(s)

1. Validity and reliability test of the Minimal Insomnia Symptom Scale (MISS). Survey at two time-points: grades 8 and 10. Survey questionnaire consists of three questions concerning falling asleep, waking during the night and rested by sleep

Secondary ID(s)

N/A

Source(s) of Monetary Support

Högskolan Kristianstad, SSSH (Association for Lund University Nurses), Stiftelsen Kempe-Carlgrenska Fonden, Drottning Silvias barnsjukhus, The Fanny Ekdahl Foundation for Paediatric Research, Svenska Försäkringsföreningen, The Ebba Danelius Foundation (of the Swedish Society of Nursing), The Swedish Sleep Research Society

Secondary Sponsor(s)

Ethics review

Status:
Approval date:
Contact:

Old ethics approval format; 1. Ethics Committee Lund University, 18/11/2009, ref: VEN 34-09 2. The Regional Ethical Review Board in Lund, 10/08/2011, ref: 2011/330 3. The Regional Ethical Review Board in Lund, 8/04/2015, ref: 2015/113

Results

Results available:	Yes
Date Posted:
Date Completed:	30/06/2020
URL:

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