Arnar S. Agustsson

Reykjavik, Iceland

Last Updated: 09/26/2026

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Found 19 publications

Atrial Fibrillation, Anticoagulants, and CRC Outcomes: A Nationwide 20-Year Study.

Atrial Fibrillation, Anticoagulants, and CRC Outcomes: A Nationwide 20-Year Study.

Journal: Thrombosis and haemostasis

Published: February 23, 2026

Effects of aspirin at diagnosis on the survival of colorectal cancer patients: a 20-year population-based study.

Effects of aspirin at diagnosis on the survival of colorectal cancer patients: a 20-year population-based study.

Journal: Scandinavian journal of gastroenterology

Published: May 05, 2025

Chemoprevention of Colorectal Cancer-With Emphasis on Low-Dose Aspirin and Anticoagulants.

Chemoprevention of Colorectal Cancer-With Emphasis on Low-Dose Aspirin and Anticoagulants.

Journal: Pharmaceuticals (Basel, Switzerland)

Published: May 01, 2025

Low incidence of thromboembolism with Fiix-monitored warfarin compared to conventional warfarin and DOACs in patients with AF.

Low incidence of thromboembolism with Fiix-monitored warfarin compared to conventional warfarin and DOACs in patients with AF.

Journal: Blood vessels, thrombosis & hemostasis

Published: September 30, 2024

ICD-10 code validation for gastrointestinal bleeding in patients receiving oral anticoagulation: nationwide cohort study.

ICD-10 code validation for gastrointestinal bleeding in patients receiving oral anticoagulation: nationwide cohort study.

Journal: BMC gastroenterology

Published: July 07, 2024

Comparison of medication adherence to different oral anticoagulants: population-based cohort study.

Comparison of medication adherence to different oral anticoagulants: population-based cohort study.

Journal: BMJ open

Published: January 05, 2023

Comparison of the effectiveness and safety of direct oral anticoagulants: a nationwide propensity score-weighted study.

Comparison of the effectiveness and safety of direct oral anticoagulants: a nationwide propensity score-weighted study.

Journal: Blood advances

Published: October 07, 2022

Warfarin Is Associated With Higher Rates of Upper But Not Lower Gastrointestinal Bleeding Compared with Direct Oral Anticoagulants: A Population-Based Propensity-Weighted Cohort Study.

Warfarin Is Associated With Higher Rates of Upper But Not Lower Gastrointestinal Bleeding Compared with Direct Oral Anticoagulants: A Population-Based Propensity-Weighted Cohort Study.

Journal: Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association

Published: May 02, 2022

Warfarin is associated with higher rates of epistaxis compared to direct oral anticoagulants: A nationwide propensity score-weighted study.

Warfarin is associated with higher rates of epistaxis compared to direct oral anticoagulants: A nationwide propensity score-weighted study.

Journal: Journal of internal medicine

Published: April 12, 2022

Causes of gastrointestinal bleeding in oral anticoagulant users compared to non-users in a population-based study.

Causes of gastrointestinal bleeding in oral anticoagulant users compared to non-users in a population-based study.

Journal: Scandinavian journal of gastroenterology

Published: November 09, 2021

Rivaroxaban Is Associated With Higher Rates of Gastrointestinal Bleeding Than Other Direct Oral Anticoagulants : A Nationwide Propensity Score-Weighted Study.

Rivaroxaban Is Associated With Higher Rates of Gastrointestinal Bleeding Than Other Direct Oral Anticoagulants : A Nationwide Propensity Score-Weighted Study.

Journal: Annals of internal medicine

Published: October 11, 2021

Development of a prognostic model of COVID-19 severity: a population-based cohort study in Iceland.

Development of a prognostic model of COVID-19 severity: a population-based cohort study in Iceland.

Journal: Diagnostic and prognostic research

Published: September 19, 2021

Showing 1-12 of 19

Last Updated: 09/26/2026