Rickard Ljung

Stockholm, AB, Sweden

Last Updated: 09/26/2026

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Found 176 publications

Adapted XBB.1.5 vaccine effectiveness against severe COVID-19 outcomes among immunocompromised persons in 2023-24 in six European countries: a VEBIS-EHR network study.

Adapted XBB.1.5 vaccine effectiveness against severe COVID-19 outcomes among immunocompromised persons in 2023-24 in six European countries: a VEBIS-EHR network study.

Journal: Expert review of vaccines

Published: July 27, 2026

Cholecystectomy vs Endoscopic Retrograde Cholangiopancreatography or No Intervention After Gallstone-Related Acute Pancreatitis.

Cholecystectomy vs Endoscopic Retrograde Cholangiopancreatography or No Intervention After Gallstone-Related Acute Pancreatitis.

Journal: JAMA surgery

Published: June 24, 2026

Nordic Multimorbidity Index, Charlson, Elixhauser and count-based comorbidity indices for mortality risk: a comparative nationwide cohort study using national health registers in Sweden.

Nordic Multimorbidity Index, Charlson, Elixhauser and count-based comorbidity indices for mortality risk: a comparative nationwide cohort study using national health registers in Sweden.

Journal: BMJ open

Published: June 22, 2026

Feasibility of conducting brand-specific influenza vaccine effectiveness studies in three Nordic countries, Denmark, Finland, Sweden.

Feasibility of conducting brand-specific influenza vaccine effectiveness studies in three Nordic countries, Denmark, Finland, Sweden.

Journal: Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin

Published: February 27, 2026

Comorbidity indices in observational studies on cardiovascular risk.

Comorbidity indices in observational studies on cardiovascular risk.

Journal: Open heart

Published: January 23, 2026

Trends in age-sex-specific prevalence and incidence of antidepressant dispensation in the Nordic countries: a systematic review.

Trends in age-sex-specific prevalence and incidence of antidepressant dispensation in the Nordic countries: a systematic review.

Journal: British journal of clinical pharmacology

Published: November 25, 2025

Comorbidity indices in observational studies on cancer risk.

Comorbidity indices in observational studies on cancer risk.

Journal: Acta oncologica (Stockholm, Sweden)

Published: November 18, 2025

Acute pancreatitis in relation to SARS-CoV-2 vaccination and infection: A nationwide cohort study in Sweden.

Acute pancreatitis in relation to SARS-CoV-2 vaccination and infection: A nationwide cohort study in Sweden.

Journal: Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]

Published: September 17, 2025

Aggregated statistics from Swedish health registries has been used for evaluating compliance with a contraindication

Aggregated statistics from Swedish health registries has been used for evaluating compliance with a contraindication

Journal: Lakartidningen

Published: August 04, 2025

Spontaneous Reports of Adverse Reactions with Fatal Outcomes After COVID-19 Vaccination During the National Vaccination Campaign in Sweden.

Spontaneous Reports of Adverse Reactions with Fatal Outcomes After COVID-19 Vaccination During the National Vaccination Campaign in Sweden.

Journal: Clinical drug investigation

Published: July 22, 2025

Brand-specific influenza vaccine effectiveness in three Nordic countries during the 2024-2025 season: a target trial emulation study based on registry data.

Brand-specific influenza vaccine effectiveness in three Nordic countries during the 2024-2025 season: a target trial emulation study based on registry data.

Journal: The Lancet regional health. Europe

Published: July 18, 2025

Effectiveness of JN.1 monovalent COVID-19 vaccination in EU/EEA countries between October 2024 and January 2025: a VEBIS electronic health record network study.

Effectiveness of JN.1 monovalent COVID-19 vaccination in EU/EEA countries between October 2024 and January 2025: a VEBIS electronic health record network study.

Journal: Vaccine

Published: July 16, 2025

Showing 1-12 of 176

Last Updated: 09/26/2026