Medication nonadherence is a growing concern and requires behavioural change to alter patient medication adherence patterns. To systematically analyse the impact of motivational interviews (MI) in improving medication adherence and clinical parameters among chronic hypertensive patients. This systematic review and meta-analysis assessed the effectiveness of MI on medication adherence and clinical parameters among hypertensive patients through PubMed, EbscoHost, ScienceDirect and Google Scholar published to date. All randomised controlled trials (RCTs) involving MI to improve medication adherence and blood pressure were included. The quality of reporting for the included studies was evaluated using the Jadad Scale. From an initial 1,518 articles, five were selected after screening. Based on the Jadad scale, one article received 5 points and three articles received 3 points for quality of reporting. Our qualitative analysis suggests that study participants exposed to MI showed up to 6.2 times greater improvement in medication adherence compared to patients not receiving intervention. The pooled data indicated a significant reduction in systolic and diastolic blood pressure by -3.04 mmHg (95% CI -3.94, -2.13; P<0.005) post-intervention in patients receiving MI. Conclusion: Motivational interviewing has shown promising results in improving medication adherence and blood pressure among hypertensive patients.
Keywords: Motivational Interview, Medication Adherence, Blood pressure control, Behavioural change