Sleep and lifestyle in school age children
ISRCTN | ISRCTN17006300 |
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DOI | https://doi.org/10.1186/ISRCTN17006300 |
Secondary identifying numbers | N/A |
- Submission date
- 09/07/2015
- Registration date
- 28/07/2015
- Last edited
- 18/08/2023
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Signs and Symptoms
Plain English Summary
Background and study aims
Sleep problems in school-aged children have increased threefold during the last 30 years. The amount of sleep that children and adolescents have appears to have reduced by about an hour over the last 100 years. Meanwhile, the number of overweight and obese children is increasing, putting those affected at risk of cardiovascular and other diseases. Both short and overly long periods of sleep are associated with being overweight as an adult. It is important to investigate the activity habits that may affect sleep, for example access to bedroom TV, time spent on computer, television and other screens, as well as exercise. The overarching aim of this study is to longitudinally (that is, over a period of time) investigate sleep and media habits, body image, activity and body mass index in school-aged children and adolescents.
Who can participate?
All students in grades 1,4,8 at schools in the municipality of Lund.
What does the study involve?
Participants complete a survey questionnaire given during the regular visit to the school nurse. Height and weight are also measured at this time.
What are the possible benefits and risks of participating?
One benefit of the survey might be that it opens up a possibility for the student to discuss sleep and lifestyle factors with the school nurse. A risk is that, although the study is a voluntary one, the students will assume that they have to participate because the school nurse requests them to. The school nurses are therefore carefully informed that they have to highlight the voluntary nature of the study.
Where is the study run from?
Kristianstad University (Sweden)
When is the study starting and how long is it expected to run for?
March 2008 to June 2020
Who is funding the study?
Kristianstad University (Sweden)
Who is the main contact?
Mrs Pernilla Garmy
Contact information
Scientific
Kristianstad University
Kristianstad
29188
Sweden
0000-0003-1643-0171 |
Study information
Study design | Longitudinal design |
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Primary study design | Observational |
Secondary study design | Longitudinal study |
Study setting(s) | School |
Study type | Screening |
Participant information sheet | Not available in web format, please use contact details to request a participant information sheet |
Scientific title | Sleep and lifestyle in school age children: a longitudinal study |
Study hypothesis | The study’s hypothesis is that sleep and media habits, body image, exercise habits, academic success and body mass index are interrelated. |
Ethics approval(s) | 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 |
Condition | Sleep problems, obesity |
Intervention | 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). |
Intervention type | Other |
Primary outcome measure | 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 measures | 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 |
Overall study start date | 01/03/2008 |
Overall study end date | 30/06/2020 |
Eligibility
Participant type(s) | Mixed |
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Age group | Child |
Sex | Both |
Target number of participants | 1500 |
Participant 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. |
Participant exclusion criteria | Participants not meeting the inclusion criteria |
Recruitment start date | 15/08/2008 |
Recruitment end date | 15/06/2019 |
Locations
Countries of recruitment
- Sweden
Study participating centre
29188
Sweden
Sponsor information
University/education
291 88 Kristianstad
Kristianstad
29188
Sweden
Phone | +4644208589 |
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pernilla.garmy@hkr.se | |
Website | www.hkr.se |
https://ror.org/00tkrft03 |
Funders
Funder type
University/education
Government organisation / Local government
- Alternative name(s)
- Kristianstad University, HKR
- Location
- Sweden
No information available
Private sector organisation / Trusts, charities, foundations (both public and private)
- Alternative name(s)
- The Kempe-Carlgrenska Foundation
- Location
- Sweden
Private sector organisation / Trusts, charities, foundations (both public and private)
- Alternative name(s)
- Queen Silvia Children’s Hospital, Drottning Silvias barn- och ungdomssjukhus
- Location
- Sweden
No information available
Private sector organisation / Associations and societies (private and public)
- Alternative name(s)
- Swedish Insurance Society, SFF
- Location
- Sweden
No information available
No information available
Results and Publications
Intention to publish date | 01/06/2017 |
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Individual participant data (IPD) Intention to share | Yes |
IPD sharing plan summary | Available on request |
Publication and dissemination plan | In 2017 and 2018 we plan to publish data from the 2015-2017 surveys, and in 2019 and 2020 we plan to publish data from the 2017-2019 surveys. The data will contain details about sleep habits, overweight, media habits, physical activity, as well as a psychometric test of the MISS questionnaire. |
IPD sharing plan |
Study outputs
Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
---|---|---|---|---|---|
Results article | results | 01/04/2012 | Yes | No | |
Results article | results | 01/12/2012 | Yes | No | |
Results article | results | 01/06/2014 | Yes | No | |
Results article | results | 01/03/2018 | Yes | No | |
Results article | 28/06/2022 | 18/08/2023 | Yes | No | |
Results article | 18/02/2020 | 18/08/2023 | Yes | No | |
Results article | 10/03/2022 | 18/08/2023 | Yes | No | |
Results article | 21/10/2021 | 18/08/2023 | Yes | No | |
Results article | 18/12/2019 | 18/08/2023 | Yes | No |
Editorial Notes
18/08/2023: Publication references added.
21/03/2018: Publication reference added. The participant inclusion criteria description has been changed.