Author

Soffia M. Hrafnkelsdóttir

Observed names: H M Soffia, Hrafnkelsdóttir, Soffía, Soffia Hrafnkelsdottir, Soffia M. Hrafnkelsdottir, Soffía M. Hrafnkelsdóttir

Institution: University of Iceland

Observed institutions: deCODE Genetics (Iceland), University of Iceland, Western Norway University of Applied Sciences, National Institute of Diabetes and Digestive and Kidney Diseases, National University Hospital of Iceland

ORCID: 0000-0002-4239-7988

Observed ORCID: 0000-0002-4239-7988

OpenAlex ID: A5134073294

Localization of a Susceptibility Gene for Type 2 Diabetes to Chromosome 5q34–q35.2

2003 · Inga Reynisdottir, Gudmar Thorleifsson, et al. · The American Journal of Human Genetics · 198

Less screen time and more frequent vigorous physical activity is associated with lower risk of reporting negative mental health symptoms among Icelandic adolescents

2018 · Soffia M. Hrafnkelsdottir, Robert J. Brychta, et al. · PLoS ONE · 159

Barley as a green factory for the production of functional Flt3 ligand

2009 · Lýður S. Erlendsson, Marcus O. Muench, et al. · Biotechnology Journal · 38

Less screen time and more physical activity is associated with more stable sleep patterns among Icelandic adolescents

2020 · Soffia M. Hrafnkelsdottir, Robert J. Brychta, et al. · Sleep Health · 31

Sleep deficiency on school days in Icelandic youth, as assessed by wrist accelerometry

2017 · Vaka Rognvaldsdottir, Sigridur L. Gudmundsdottir, et al. · Sleep Medicine · 27

Physical Activity from Early Adulthood and Risk of Prostate Cancer: A 24-Year Follow-Up Study among Icelandic Men

2015 · Soffia M. Hrafnkelsdóttir, Jóhanna E. Torfadóttir, et al. · Cancer Prevention Research · 23

Less physical activity and more varied and disrupted sleep is associated with a less favorable metabolic profile in adolescents

2020 · Vaka Rognvaldsdottir, Robert J. Brychta, et al. · PLoS ONE · 21

Screen Time and Body Image in Icelandic Adolescents: Sex-Specific Cross-Sectional and Longitudinal Associations

2022 · Soffia M. Hrafnkelsdottir, Robert J. Brychta, et al. · International Journal of Environmental Research and Public Health · 16

Longitudinal Change in Adolescent Bedtimes Measured by Self-Report and Actigraphy

2019 · Robert J. Brychta, Vaka Rögnvaldsdóttir, et al. · Journal for the Measurement of Physical Behaviour · 10

Hreyfing og svefn reykvískra ungmenna

2018 · Vaka Rögnvaldsdóttir, Berglind M. Valdimarsdóttir, et al. · Læknablaðið · 7

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

Heilsuhegðun_Method report and codebook_Iceland_16_04_2026.docx

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

02_anthropometrics_wide.tab

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

06_blood_fitness_long.tab

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

14_atgervi_actigraphy_long.xlsx

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

07_questionnaire_long.xlsx

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

09_actigraphy_activity_wide.xlsx

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

16_atgervi_blood_fitness_wide.tab

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

13_atgervi_questionnaire_long.xlsx

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

12_atgervi_blood_fitness_long.xlsx

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

10_atgervi_participants.tab

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

08_actigraphy_sleep_wide.tab

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

04_questionnaire_wide.tab

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

11_atgervi_anthropometrics_long.xlsx

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

03_blood_fitness_wide.xlsx

2026 · Jóhannsson, Erlingur Sigurður, Kristjánsdóttir, Ása Guðrún, et al. · DATICE

Works count: 38

Citation count: 529

H-index: 9

I10-index: 8