Patient Specific Factors Influencing Adherence to INR Monitoring.

Objective: The specific reasons underlying nonadherence to monitoring the international normalized ratio (INR) from the patient's perspective have not been formally studied. Understanding why patients do or do not adhere has the potential to reveal useful targets for improving adherence to INR monitoring or alternative treatment strategies. The objective of this study was to gain further insight into INR monitoring nonadherence from the patient's perspective.