An Observational Cross-sectional Study Evaluating the Sociodemographic and Clinical Characteristics of Patients Diagnosed With NVAF With a Risk of Stroke or Systemic Embolism, Who Are on Treatment to Adequately Control Their Coagulation and Treated in Primary Care Centres

Inclusion Criteria: * Patients ≥18 years of age diagnosed with NVAF with a risk of stroke or systemic embolism treated in primary care centres. * Patients on regular treatment with anticoagulants who have changed their ther-apeutic regimen due to any clinical situation and have been on treatment with a DOAC for at least three months before being recruited (date of signing the in-formed consent). * Patients whose DOAC has been indicated by the primary care physician. * Patients who have given their informed consent in writing. Exclusion Criteria: * Patients who changed their anticoagulant therapy within a period of less than three months before signing the informed consent. * Patients with cognitive impairment preventing them from understanding what is written in the patient information sheet or the informed consent, or from per-forming the self-administered questionnaires. * Patients who started anticoagulant therapy for NVAF with a DOAC.