2026-05-02T02:30:07Z https://oai.datacite.org/oai

doi:10.34881/zyg5xm 2026-04-20T14:49:20Z JJUZ GESIS.SSRI

4 GESIS.SSRI 10.34881/ZYG5XM Jóhannsson, Erlingur Sigurður Erlingur Sigurður Jóhannsson https://orcid.org/0000-0002-8028-7851 University of Iceland Kristjánsdóttir, Ása Guðrún Ása Guðrún Kristjánsdóttir Icelandic Centre for Research Hrafnkelsson, Hannes Hannes Hrafnkelsson University of Iceland Magnússon, Kristján Þór Kristján Þór Magnússon University of Iceland Stefánsdóttir, Rúna Sif Rúna Sif Stefánsdóttir University of Iceland Guðmundsdóttir, Sigríður Sigríður Guðmundsdóttir University of Iceland Arngrímsson, Sigurbjörn Árni Sigurbjörn Árni Arngrímsson University of Iceland Hrafnkelsdóttir, Soffía Soffía Hrafnkelsdóttir https://orcid.org/0000-0002-4239-7988 University of Iceland Rögnvaldsdóttir, Vaka Vaka Rögnvaldsdóttir University of Iceland Gestsdóttir, Sunna Sunna Gestsdóttir University of Iceland Birgisson, Óttar Óttar Birgisson University of Iceland Ingvarsdóttir, Þuríður Þuríður Ingvarsdóttir University of Iceland GAGNÍS (DATICE) 2022 Medicine, Health and Life Sciences Social Sciences Child health Food and nutrition Health promotion Public health risks Lifestyle and health Adolescence Health.DietAndNutrition Health.PhysicalFitnessAndExercise Health.PublicHealth Education.EducationalPolicy Educational Research Institute University of Iceland Icelandic Social Science Data Service University of Iceland Educational Research Institute University of Iceland Jóhannsson, Erlingur Sigurður Erlingur Sigurður Jóhannsson University of Iceland Jóhannsson, Erlingur Sigurður Erlingur Sigurður Jóhannsson 2022-02-01 2017-04-01 2022-01-26 2022-01-26 2026-04-20 2006-08-01/2006-12-31 2008-08-01/2008-12-31 2017-02-01/2017-04-30 Clinical data;Psychological test;Survey data 10.1080/02813430903155028 10.1017/S1368980010000716 10.1186/1479-5868-8-138 10.1016/J.SLEEP.2016.12.028 10.1038/S41598-020-73774-X 10.1371/JOURNAL.PONE.0196286 10.34881/ZYG5XM/DFM81O 10.34881/ZYG5XM/Q9KYJH 10.34881/ZYG5XM/UBUFLM 10.34881/ZYG5XM/5VTXHF 10.34881/ZYG5XM/GXRXNW 10.34881/ZYG5XM/VTARTF 10.34881/ZYG5XM/0QEKBF 10.34881/ZYG5XM/QMZLSJ 10.34881/ZYG5XM/M2UN4Y 10.34881/ZYG5XM/TDCSUT 10.34881/ZYG5XM/UGJRVD 10.34881/ZYG5XM/UPDR0P 10.34881/ZYG5XM/NJUFDA 10.34881/ZYG5XM/9MB57Z 10.34881/ZYG5XM/DATMW7 10.34881/ZYG5XM/TJFIL8 10.34881/ZYG5XM/GQJMT5 10.34881/ZYG5XM/BGU5KK 10.34881/ZYG5XM/0IAJ4F 10.34881/ZYG5XM/XAW0NE 670949 22416 514167 293829 183759 411705 438531 537344 1086732 3512396 507532 95611 161696 189577 47961 253535 241110 13390 40043 677754 229270 application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document application/vnd.openxmlformats-officedocument.spreadsheetml.sheet text/tab-separated-values text/tab-separated-values text/tab-separated-values text/tab-separated-values application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet text/tab-separated-values application/vnd.openxmlformats-officedocument.wordprocessingml.document application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet text/tab-separated-values text/tab-separated-values text/tab-separated-values application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet 2.1 Custom terms specific to this dataset Health Behavior of Icelandic Youth is an extensive long-term study on the health status of Icelandic youth and its relation to sleep, physical activity and school environment. The research is organized by investigators at the School of Education, University of Iceland, in collaboration with the city of Reykjavík, Directorate of Health, Icelandic Heart Association, National Institute of Health in USA and Western Norway University of Applied Sciences in Bergen. The overall aim of the research was to investigate physical health status, in particular longitudinal changes in body composition, physical activity, sleep, mental aspects and fitness in a cohort of Icelandic children (born in 1999), from age 7 and 9 years old to 15 and 17 years old. Furthermore, the aim was to assess how these factors are associated with objective measures of sleeping patterns and physical activity in adolescence and the longitudinal changes in these from age 15 to 17. In the years 2006 and 2008, the first wave of data collection was conducted under the title Lifestyle of 7 and 9 year old Icelandic children - an intervention study for improved health. Data collection for the second wave was conducted in 2015 and 2017, under Health Behavior of Young Icelanders, where individuals from the first wave were followed up along with a group of new individuals. SPSS, 19, 22 R, 2.11.1, 2.6.2, 3.4.2, 4.1.0 Matlab, R2013a SAS, 19 PAWS, 17 Iceland Iceland Icelandic Centre for research University of Iceland Research Fund Ministry of Education, Science and Culture Icelandic Primary Health Care Research Fund Icelandic Directorate of Health