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- Fredrik Nyberg
Fredrik Nyberg
Senior Lecturer
School of Public Health and Community MedicineAbout Fredrik Nyberg
Professor of Register Epidemiology
Background
Research interests
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Moderate to Severe Obstructive Sleep Apnea Is a Risk Factor for Severe COVID-19-A Nationwide Cohort
Study
Mirjam Ljunggren, Andreas Palm, Magnus Ekstroem, Josefin Sundh, Ludger Grote, Huiqi Li, Fredrik Nyberg, Ossur Ingi Emilsson
JOURNAL OF SLEEP RESEARCH - 2025 -
Area-related sociodemographic factors and the risk of severe COVID-19: a longitudinal study of the total adult population in
Sweden
Henrik Mellström Dahlgren, Huiqi Li, Leif Dotevall, Fredrik Nyberg
INFECTIOUS DISEASES - 2025 -
Risk of exacerbations, hospitalisation, and mortality in adults with physician-diagnosed chronic obstructive pulmonary disease with normal spirometry and adults with preserved ratio impaired spirometry in Sweden: retrospective analysis of data from a nationwide cohort
study
Oscar Wallström, Caroline Stridsman, Helena Backman, Sigrid Vikjord, Anne Lindberg, Fredrik Nyberg, Lowie E G W Vanfleteren
LANCET REGIONAL HEALTH-EUROPE - 2025 -
Sociodemographic characteristics and health status of women with breast cancer and COVID 19 diagnosis by menopausal status a cross sectional
study
Mohammadhossein Hajiebrahimi, Hussam Shihan, Ola Bratt, Huiqi Li, Fredrik Nyberg, Bjoern Wettermark
Scientific Reports - 2025 -
Epidemiological outcomes and policy implementation in the Nordic countries during the COVID-19
pandemic
Adam Hallberg, Mia Aakjaer, Katri Aaltonen, Morten Andersen, Elisabeth Pedersen, Mohammadhossein Hajiebrahimi, Hedvig Nordeng, Fredrik Nyberg, Per-Jostein Samuelsen, Bjorn Wettermark
Archives of Public Health - 2025 -
Initiation of Anticoagulants During the COVID-19 Pandemic in Sweden: An Interrupted Time Series
Analysis
Per-Jostein Samuelsen, Bjoern Wettermark, Fredrik Nyberg, Mohammadhossein Hajiebrahimi
Basic & Clinical Pharmacology & Toxicology - 2025 -
All-cause and cause-specific mortality in respiratory symptom clusters: a population-based multicohort
study
Daniil Lisik, Helena Backman, Hannu Kankaanranta, Rani Basna, Linnea Hedman, Linda Ekerljung, Fredrik Nyberg, Anne Lindberg, Göran Wennergren, Eva Rönmark, Bright I Nwaru, Lowie E G W Vanfleteren
Respiratory research - 2025 -
Regional differences in COVID-19 vaccine uptake and their determinants among Swedish older
adults
Yiyi Xu, Fredrik Nyberg, Ailiana Santosa, Ulrika Marking, Jerker Jonsson, Magnus Gisslén, Jonas W. Wastesson, Kristina Johnell
PUBLIC HEALTH - 2025 -
Influence of viral load on severity and mortality in
COVID-19
Johan Ringlander, Anna Martner, Huiqi Li, Magnus Gisslén, Magnus Lindh, Johan Westin, Fredrik Nyberg, Martin Lagging, Staffan Nilsson, Kristoffer Hellstrand
INFECTIOUS DISEASES - 2025 -
Cardiovascular events following coronavirus disease 2019 vaccination in adults: a nationwide Swedish
study
Yiyi Xu, Huiqi Li, Ailiana Santosa, Bjorn Wettermark, Tove Fall, Jonas Bjork, Mats Börjesson, Magnus Gisslén, Fredrik Nyberg
EUROPEAN HEART JOURNAL - 2025 -
Key Characteristics of Asthma Patients with COVID-19 Vary Substantially by
Age
Brian Kirui, Ailiana Santosa, Huiqi Li, Lowie E G W Vanfleteren, Caroline Stridsman, Fredrik Nyberg
Journal of Asthma and Allergy - 2024 -
Domain-Specific Physical Activity and Stroke in
Sweden.
Adam Viktorisson, Annie Palstam, Fredrik Nyberg, Christina Berg, Lauren Lissner, Katharina Stibrant Sunnerhagen
JAMA Network Open - 2024 -
A Capture-Recapture-based Ascertainment Probability Weighting Method for Effect Estimation With Under-ascertained
Outcomes.
Carl Bonander, Anton Nilsson, Huiqi Li, Shambhavi Sharma, Chioma Nwaru, Magnus Gisslén, Magnus Lindh, Niklas Hammar, Jonas Björk, Fredrik Nyberg
Epidemiology - 2024 -
Comparison of associations between alcohol consumption and metabolic syndrome according to three definitions: The Swedish INTERGENE
study.
Alina Skultecka, Fredrik Nyberg, Lauren Lissner, Maria Rosvall, Dag S. Thelle, Anna-Carin Olin, Kjell Torén, Lena Björck, Annika Rosengren, Kirsten Mehlig
Metabolism Open - 2024 -
Mental illness and COVID-19 vaccination: a multinational investigation of observational & register-based
data
Mary M. Barker, Kadri Koiv, Ingibjoerg Magnusdottir, Hannah Milbourn, Bin Wang, Xinkai Du, Gillian Murphy, Eva Herweijer, Elisabet U. Gisladottir, Huiqi Li, Aniko Lovik, Anna K. Kahler, Archie Campbell, Maria Feychting, Arna Hauksdottir, Emily E. Joyce, Edda Bjork Thordardottir, Emma M. Frans, Asle Hoffart, Reedik Magi, Gunnar Tomasson, Kristjana Asbjornsdottir, Johanna Jakobsdottir, Ole A. Andreassen, Patrick F. Sullivan, Sverre Urnes Johnson, Thor Aspelund, Ragnhild Eek Brandlistuen, Helga Ask, Daniel L. McCartney, Omid V. Ebrahimi, Kelli Lehto, Unnur A. Valdimarsdottir, Fredrik Nyberg, Fang Fang
Nature Communications - 2024 -
Impact of the COVID-19 pandemic on initiation of antihypertensive drugs in Sweden: an interrupted time series
study
Ana Tomas, Bjorn Wettermark, Fredrik Nyberg, Mohammadhossein Hajiebrahimi
BMJ Open - 2024 -
Person-Centered Web-Based Mobile Health System (Symptoms) for Reporting Symptoms in COVID-19 Vaccinated Individuals: Observational Study of System, Users, and
Symptoms.
Emelie Gustafson Hedov, Fredrik Nyberg, Stefan Gustafsson, Huiqi Li, Magnus Gisslén, Johan Sundström
JMIR Formative Research - 2024 -
Sociodemographic differences in the response to changes in COVID-19 testing
guidelines
Shambhavi Sharma, Huiqi Li, Jesper Löve, Chioma Nwaru, Magnus Gisslén, Sara Byfors, Niklas Hammar, Anton Nilsson, Jonas Bjork, Fredrik Nyberg, Carl Bonander
EUROPEAN JOURNAL OF PUBLIC HEALTH - 2024 -
SARS-CoV-2 infection and risk of subsequent demyelinating diseases: national register-based cohort
study.
Scott Montgomery, Snieguole Vingeliene, Huiqi Li, Helena Backman, Ruzan Udumyan, Johan Jendeberg, Gunlög Rasmussen, Martin Sundqvist, Katja Fall, Ayako Hiyoshi, Fredrik Nyberg
Brain Communications - 2024 -
Exacerbation History and Risk of Myocardial Infarction and Pulmonary Embolism in
COPD.
Oskar Wallström, Caroline Stridsman, Anne Lindberg, Fredrik Nyberg, Lowie E G W Vanfleteren
Chest - 2024 -
Survival of Critically Ill COVID-19 Patients in Sweden During the First Two and a Half Years of the
Pandemic.
Ailiana Santosa, Jonatan Oras, Huiqi Li, Chioma Nwaru, Brian Kirui, Fredrik Nyberg
Critical care medicine - 2024 -
Impact of the early COVID-19 pandemic on adult mental health-related dispensed medications, hospitalizations and specialist outpatient visits in Norway and Sweden: Interrupted time series
analysis.
David Moreno-Martos, Jing Zhao, Huiqi Li, Fredrik Nyberg, Ludvig Daae Bjørndal, Mohammadhossein Hajiebrahimi, Björn Wettermark, Mia Aakjær, Morten Andersen, Maurizio Sessa, Angela Lupattelli, Hedvig Nordeng, Daniel R Morales
British Journal of Clinical Pharmacology - 2024 -
Impact of chronic oral glucocorticoid treatment on mortality in patients with COVID-19: analysis of a population-based
cohort.
Margret Einarsdottir, Brian Kibiwott Kirui, Huiqi Li, Daniel S Olsson, Gudmundur Johannsson, Fredrik Nyberg, Oskar Ragnarsson
BMJ Open - 2024 -
COVID-19 Outcomes and Vaccinations in Swedish Solid Organ Transplant Recipients 2020-2021: A Nationwide Multi-Register Comparative Cohort
Study
John M. Söfteland, Huiqi Li, Jesper M Magnusson, Susannah Leach, Vanda Friman, Magnus Gisslén, Marie Felldin, Andreas Schult, Kristjan Karason, Seema Baid-Agrawal, Carin Wallquist, Fredrik Nyberg
Viruses - 2024 -
Drug utilisation in children and adolescents before and after the start of the COVID-19 pandemic: Interrupted time-series analyses in three European
countries
Elisabeth Pedersen, Elena Tripodi, Mia Aakjaer, Huiqi Li, Anna Cantarutti, Fredrik Nyberg, Morten Andersen, Angela Lupattelli, Hedvig Nordeng
PAEDIATRIC AND PERINATAL EPIDEMIOLOGY - 2024 -
Increased risk of hospitalization, intensive care and death due to COVID-19 in patients with adrenal insufficiency: A Swedish nationwide
study.
Ragnhildur Bergthorsdottir, Daniela Esposito, Daniel S Olsson, Oskar Ragnarsson, Per Dahlqvist, Sophie Bensing, Jonatan Nåtman, Gudmundur Johannsson, Fredrik Nyberg
Journal of internal medicine - 2024 -
The sociodemographic patterning of sick leave and determinants of longer sick leave after mild and severe COVID-19: a nationwide register-based study in
Sweden
Malin Spetz, Yvonne Natt och Dag, Huiqi Li, Chioma Nwaru, Ailiana Santosa, Fredrik Nyberg, Maria Rosvall
European Journal of Public Health - 2024 -
Serially Combining Epidemiological Designs Does Not Improve Overall Signal Detection in Vaccine Safety
Surveillance
F. Arshad, M. J. Schuemie, F. Bu, E. P. Minty, T. M. Alshammari, L. Y. H. Lai, T. Duarte-Salles, S. Fortin, Fredrik Nyberg, P. B. Ryan, G. Hripcsak, D. Prieto-Alhambra, M. A. Suchard
Drug Safety - 2023 -
Characteristics and outcomes of COVID-19 patients with COPD from the United States, South Korea, and
Europe
David Moreno-Martos, Katia Verhamme, Anna Ostropolets, Kristin Kostka, Talita Duarte-Sales, Daniel Prieto-Alhambra, Thamir M. Alshammari, Heba Alghoul, Waheed Ul Rahman Ahmed, Clair Blacketer, Scott DuVall, Lana Lai, Michael Matheny, Fredrik Nyberg, Jose Posada, Peter Rijnbeek, Matthew Spotnitz, Anthony Sena, Nigam Shah, Marc Suchard, Seng Chan You, George Hripcsak, Patrick Ryan, Daniel Morales
Wellcome Open Research - 2023 -
Covid-19 vaccine effectiveness against post-covid-19 condition among 589 722 individuals in Sweden: population based cohort
study.
Lisa Lundberg, Susannah Leach, Yiyi Xu, Jari Martikainen, Ailiana Santosa, Magnus Gisslén, Huiqi Li, Fredrik Nyberg, Maria Bygdell
BMJ (Clinical research ed.) - 2023 -
Pre- and post-vaccination characteristics and risk factors for COVID-19 outcomes in a Swedish population-based cohort of COPD
patients
Brian Kibiwott Kirui, Ailiana Santosa, Lowie E G W Vanfleteren, Huiqi Li, Stefan Franzén, Caroline Stridsman, Fredrik Nyberg
European Respiratory Journal Open Research (ERJ Open Research) - 2023 -
Regular Inhaled Corticosteroids Use May Protect Against Severe COVID-19 Outcome in
COPD
M Labor, Brian Kirui, Fredrik Nyberg, Lowie E G W Vanfleteren
The International Journal of Chronic Obstructive Pulmonary Disease - 2023 -
Incidence and Characteristics in Children with Post-COVID-19 Condition in
Sweden
Maria Bygdell, Jenny Kindblom, Jari Martikainen, Huiqi Li, Fredrik Nyberg
JAMA Network Open - 2023 -
The burden of disease due to COVID-19 in Sweden 2020–2021: A disability-adjusted life years (DALYs)
study
Jad Shedrawy, Patricia Ernst, Knut Lönnroth, Fredrik Nyberg
Scandinavian Journal of Public Health - 2023 -
Risk and outcomes of COVID-19 in patients with oxygen-dependent chronic respiratory failure- a national cohort
study.
Josefin Sundh, Andreas Palm, Mirjam Ljunggren, Össur Ingi Emilsson, Ludger Grote, Sara Cajander, Huiqi Li, Fredrik Nyberg, Magnus Ekström
Respiratory medicine - 2023 -
Artificial intelligence-driven prediction of COVID-19-related hospitalization and death: a systematic
review
S. Shakibfar, Fredrik Nyberg, Huiqi Li, J. Zhao, H. M. E. Nordeng, G. K. F. Sandve, M. Pavlovic, M. Hajiebrahimi, M. Andersen, M. Sessa
Frontiers In Public Health - 2023 -
Genetic susceptibility to airway inflammation and exposure to short-term outdoor air
pollution
F. Bouma, Fredrik Nyberg, Anna-Carin Olin, Hanne Krage Carlsen
Environmental health - 2023 -
A population-based, retrospective cohort study of the association between ABO blood group and risk of
COVID-19.
Torsten Dahlén, Huiqi Li, Fredrik Nyberg, Gustaf Edgren
Journal of internal medicine - 2023 -
A comprehensive characterization of patients diagnosed with post-COVID-19 condition in Sweden 16 months after the introduction of the International Classification of Diseases Tenth Revision diagnosis code (U09.9): a population-based cohort
study.
Maria Bygdell, Susannah Leach, Lisa Lundberg, David Gyll, Jari Martikainen, Ailiana Santosa, Huiqi Li, Magnus Gisslén, Fredrik Nyberg
International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases - 2023 -
Short-term improvement of mental health after a COVID-19
vaccination.
Charilaos Chourpiliadis, Anikó Lovik, Anna K Kähler, Unnur A Valdimarsdóttir, Emma M Frans, Fredrik Nyberg, Patrick F Sullivan, Fang Fang
PloS one - 2023 -
Occupational role and COVID-19 among foreign-born healthcare workers in Sweden: a registry-based
study
Chioma Nwaru, Huiqi Li, Carl Bonander, Ailiana Santosa, Stefan Franzén, Maria Rosvall, Fredrik Nyberg
European Journal of Public Health - 2023 -
Exacerbation Risk and Mortality in COPD GOLD Group A and B Patients with and without Exacerbation
History.
Lowie E G W Vanfleteren, Anne Lindberg, Caddie Zhou, Fredrik Nyberg, Caroline Stridsman
American journal of respiratory and critical care medicine - 2023 -
Contextualising adverse events of special interest to characterise the baseline incidence rates in 24 million patients with COVID-19 across 26 databases: a multinational retrospective cohort
study.
Erica A Voss, Azza Shoaibi, Lana Yin Hui Lai, Clair Blacketer, Thamir Alshammari, Rupa Makadia, Kevin Haynes, Anthony G Sena, Gowtham Rao, Sebastiaan van Sandijk, Clement Fraboulet, Laurent Boyer, Tanguy Le Carrour, Scott Horban, Daniel R Morales, Jordi Martínez Roldán, Juan Manuel Ramírez-Anguita, Miguel A Mayer, Marcel de Wilde, Luis H John, Talita Duarte-Salles, Elena Roel, Andrea Pistillo, Raivo Kolde, Filip Maljković, Spiros Denaxas, Vaclav Papez, Michael G Kahn, Karthik Natarajan, Christian Reich, Alex Secora, Evan P Minty, Nigam H Shah, Jose D Posada, Maria Teresa Garcia Morales, Diego Bosca, Honorio Cadenas Juanino, Antonio Diaz Holgado, Miguel Pedrera Jiménez, Pablo Serrano Balazote, Noelia García Barrio, Selçuk Şen, Ali Yağız Üresin, Baris Erdogan, Luc Belmans, Geert Byttebier, Manu L N G Malbrain, Daniel J Dedman, Zara Cuccu, Rohit Vashisht, Atul J Butte, Ayan Patel, Lisa Dahm, Cora Han, Fan Bu, Faaizah Arshad, Anna Ostropolets, Fredrik Nyberg, George Hripcsak, Marc A Suchard, Dani Prieto-Alhambra, Peter R Rijnbeek, Martijn J Schuemie, Patrick B Ryan
EClinicalMedicine - 2023 -
Assessing Heterogeneity of Treatment Effect in Real-World
Data.
Jodi B Segal, Ravi Varadhan, Rolf H H Groenwold, Xiaojuan Li, Kaori Nomura, Sigal Kaplan, Shirin Ardeshirrouhanifard, James Heyward, Fredrik Nyberg, Mehmet Burcu
Annals of internal medicine - 2023 -
The impact of Covid-19 in patients with chronic myeloid leukemia-a nationwide population-based
study.
Torsten Dahlén, Hjalmar Flygt, Anna Lübking, Ulla Olsson-Strömberg, Lovisa Wennström, Arta Dreimane, Anders Själander, Susannah Leach, Magnus Gisslén, Huiqi Li, Martin Höglund, Leif Stenke, Fredrik Nyberg
Leukemia - 2023 -
Comparison of clinician diagnosis of COVID-19 with real time polymerase chain reaction in an adult-representative population in
Sweden
Eman Quraishi, Chiamaka Jibuaku, Daniil Lisik, Göran Wennergren, Jan Lötvall, Fredrik Nyberg, Linda Ekerljung, Madeleine Rådinger, Hannu Kankaanranta, Bright I Nwaru
Respiratory research - 2023 -
Machine learning-driven development of a disease risk score for COVID-19 hospitalization and mortality: a Swedish and Norwegian register-based
study.
Saeed Shakibfar, Jing Zhao, Huiqi Li, Hedvig Nordeng, Angela Lupattelli, Milena Pavlovic, Geir Kjetil Sandve, Fredrik Nyberg, Björn Wettermark, Mohammadhossein Hajiebrahimi, Morten Andersen, Maurizio Sessa
Frontiers in public health - 2023 -
Evaluating the impact of alternative phenotype definitions on incidence rates across a global data
network.
Rupa Makadia, Azza Shoaibi, Gowtham A Rao, Anna Ostropolets, Peter R Rijnbeek, Erica A Voss, Talita Duarte-Salles, Juan Manuel Ramírez-Anguita, Miguel A Mayer, Filip Maljković, Spiros Denaxas, Fredrik Nyberg, Vaclav Papez, Anthony G Sena, Thamir M Alshammari, Lana Y H Lai, Kevin Haynes, Marc A Suchard, George Hripcsak, Patrick B Ryan
JAMIA open - 2023 -
Association between SARS-CoV-2 vaccination and healthcare contacts for menstrual disturbance and bleeding in women before and after menopause: nationwide, register based cohort
study.
Rickard Ljung, Yiyi Xu, Anders Sundström, Susannah Leach, Ebba Hallberg, Maria Bygdell, Maria Larsson, Veronica Arthurson, Magnus Gisslén, Rolf Gedeborg, Fredrik Nyberg
BMJ (Clinical research ed.) - 2023 -
Characteristics and outcomes of COVID-19 patients with and without asthma from the United States, South Korea, and
Europe
D. R. Morales, A. Ostropolets, L. N. Lai, A. Sena, S. Duvall, M. Suchard, K. Verhamme, P. Rjinbeek, J. Posada, W. Ahmed, T. Alshammary, H. Alghoul, O. Alser, C. Areia, C. Blacketer, E. Burn, P. Casajust, S. C. You, D. Dawoud, A. Golozar, M. C. Gong, J. Jonnagaddala, K. Lynch, M. Matheny, E. Minty, Fredrik Nyberg, A. Uribe, M. Recalde, C. Reich, M. Scheumie, K. Shah, N. Shah, L. Schilling, D. Vizcaya, L. Zhang, G. Hripcsak, P. Ryan, D. Prieto-Alhambra, T. Durate-Salles, K. Kostka
Journal of Asthma - 2023
More publications
We have limited the number of publications on this page. Visit GUP (The Publication Database for Gothenburg University) to find more publications.