Background Electronic health records are widely used in cardiovascular disease research.
We appraised the validity of stroke, acute coronary syndrome and heart failure diagnoses in …

Importance The use of assisted reproductive technologies (ARTs) is steadily increasing
worldwide. The outcomes associated with treatment for an individual's long-term health …

Background Electronic medical records (EMRs) contain large amounts of rich clinical
information. Developing EMR-based case definitions, also known as EMR phenotyping, is …

Abstract Background and Aims The benefit of oral anticoagulant (OAC) therapy in atrial
fibrillation (AF) and intermediate stroke risk is debated. In a nationwide Norwegian cohort …

Background The risks of intracranial haemorrhage (ICH) associated with antithrombotic
drugs outside clinical trials are gaining increased attention. The aim of this nationwide study …

Background To provide age-and sex-specific incidence and case fatality rates for non-
traumatic aneurysmal subarachnoid hemorrhage (aSAH) in Norway. We also studied time …

Background: Cluster headache (CH) is one of the most painful conditions in humans and
there is limited epidemiological data on this debilitating condition. Objectives: To describe …

Background Accurate and reliable clinical and radiological predictors of intracerebral
hemorrhage (ICH) outcomes are needed to optimize treatment of ICH. The aim of this study …

Objective To investigate the association between subfertility and risk of cardiovascular
disease (CVD) outcomes. Design Prospective study. Setting Population-based cohort …

Background & Aims Antireflux treatment is recommended to reduce esophageal
adenocarcinoma in patients with Barrett's esophagus. Antireflux surgery (fundoplication) …