Treatment Pattern of NOACs (Non-vitamin K Oral Anticoagulants) in Outpatient Users in Colombian Databases

Inclusion Criteria: * First prescription of NOACs (rivaroxaban, dabigatran and apixaban) in the outpatient setting. * Non valvular Atrial Fibrillation (NVAF) Patients * aged ≥18 years * at least one year of enrollment in the Audifarma database * one year since first encounter with healthcare provider will be included in the study Exclusion Criteria: * Patients with any record of index drug prescription prior to the enrolment period. * Patients who qualify as members of more than one cohort study on the same day