Publications by authors named "N Hammar"

Background: Uric acid closely relates to both kidney disease and atrial fibrillation (AF), yet the extent to which it influences the kidney-AF association remains uncertain. We examined the relationship between kidney function and risk of AF, accounting for uric acid levels.

Methods: A total of 308,509 individuals in the Swedish Apolipoprotein-Related Mortality Risk (AMORIS) cohort were included and their serum creatinine and uric acid were measured during 1985-1996.

View Article and Find Full Text PDF

Background: To investigate the association between surgical removal of tonsils and risk of COVID-19 with different severity.

Methods: Through a nested case-control study during January 31st to December 31st 2020, including 58,888 participants of the UK Biobank, we investigated the association of tonsillectomy with the future risk of mild and severe COVID-19, using binomial logistic regression. We further examined the associations of such surgery with blood inflammatory, lipid and metabolic biomarkers to understand potential mechanisms.

View Article and Find Full Text PDF

During the coronavirus disease 2019 (COVID-19) pandemic, Sweden emphasized voluntary guidelines over mandates. We exploited a rapid change and reversal of the Public Health Agency of Sweden's COVID-19 testing guidelines for vaccinated and recently infected individuals as a quasi-experiment to examine sociodemographic differences in the response to changes in pandemic guidelines. We analyzed daily polymerase chain reaction tests from 1 October 2021 to 15 December 2021, for vaccinated or recently infected adults (≥20 years; n = 1 596 321) from three Swedish regions (Stockholm, Örebro, and Dalarna).

View Article and Find Full Text PDF

Importance: Individuals with psychiatric disorders have been reported to have elevated levels of inflammatory biomarkers, and prospective evidence is limited regarding the association between inflammatory biomarkers and subsequent psychiatric disorders risk.

Objective: To assess the associations between inflammation biomarkers and subsequent psychiatric disorders risk.

Design, Setting, And Participants: This was a prospective cohort study including individuals from the Swedish Apolipoprotein Mortality Risk (AMORIS) cohort, with no prior psychiatric diagnoses and having a measurement of at least 1 inflammatory biomarker.

View Article and Find Full Text PDF

Background And Aims: The study sought to examine which biomarkers have the best predictive capabilities for future alcohol-related liver cirrhosis (ARLC) in a general population setting.

Method: This population-based cohort study includes approximately 35% of the inhabitants of Stockholm County who had left a blood sample at an outpatient visit in primary care or occupational health screening from 1985 to 1996. All subjects with a blood sample measurement of alanine aminotransferase and aspartate aminotransferase (AST) were included, exclusions were made for persons with known liver disease.

View Article and Find Full Text PDF