Inclusion Criteria:

• Men and women at least 70 years of age who are new or established participants in the primary care practice.
• Willing to provide consent to participate in the study and to use personal health information to ascertain endpoints from the Center for Medicare & Medicaid Services (CMS) Medicare Claims Database and to access data from health records.
• Health insurance by Medicare Parts A & B (Medicare Fee-for-service).

Exclusion Criteria:

• Oral anticoagulation (OAC) for any indication at the time of enrollment.
• History of Atrial Fibrillation (AF) or Atrial Flutter (AFL) as documented in the participant's current medical problem list.
• Any condition the investigator considers a contraindication to OAC; e.g., bleeding that required medical attention or severe renal impairment.
• Any condition the investigator considers will prevent compliance with study instructions.
• Implanted cardiac devices (pacemakers, implantable cardiac defibrillators, or cardiac resynchronization therapy, and implantable loop recorders).
• History of allergy to adhesive.
• Other protocol-defined inclusion/exclusion criteria could apply.

For more information regarding Bristol-Myers Squibb Clinical Trial participation, please visit www.BMSStudyConnect.com.