| Summary: | Context: Oral anticoagulant therapy (OAT) is one of the most widely used therapies. Being on such regimens requires high degree of compliance and adequate knowledge to avoid serious complications. Aims: This study aims to assess compliance with and awareness about OAT among Saudi patients, and their willingness to use the point-of-care (POC) international normalized ratio (INR) testing devices for self-monitoring. Settings and Design: This cross-sectional study was conducted at a tertiary hospital in Riyadh, Saudi Arabia, over 6 months. Subjects and Methods: A face-to-face interview has been carried out for all patients based on the questionnaire carried out for all patients based on the questionnaire. Results were analyzed according to demographics, adherence, knowledge, and INR control. Statistical Analysis Used: Statistical Package for the Social Sciences version 19 software (SPSS Inc., Chicago, IL, USA) was used. Results: One hundred sixty-two patients were interviewed, of which females (69.1%) exceeded males (30.1%). Most of them were on warfarin (80.2%), received education by their physicians. In general, patients had poor knowledge and medium adherence (53.1%) (scored < 50%). About 24% of the poor knowledge group (PKG) were highly adherent compared to 14.5% of the fine knowledge group (FKG). However, 53.2% of FKG had a controlled INR where this percentage reduces to 27% in PKG. The most incorrect answered question in both groups was related to warfarin-drug-interactions (75.3%). The majority (74.7%) was eager to make use of the POC-INR devices. Conclusions: The participants' knowledge was generally poor but level of knowledge did not play a role in compliance. Regardless, an education program should be accommodated to help patients in improving their medication control and reducing clinical visits. The majority was willing to adopt (POC) INR devices that will certainly help them in managing their treatment and potentially reducing adverse clinical outcomes.
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