MEDICATION ADHERENCE, APPOINTMENT ADHERENCE AND ASSOCIATED FACTORS AMONG OUTPATIENTS WITH HYPERTENSION AT THAI NGUYEN NATIONAL HOSPITAL
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Abstract
Objectives: To describe medication adherence, appointment-keeping adherence, and analyze associated factors among outpatients with hypertension at the Outpatient Department, Thai Nguyen National Hospital.
Subjects and methods: A cross-sectional analytical study was conducted among 195 patients selected consecutively. Medication adherence was assessed using the Vietnamese version of the General Medication Adherence Scale (GMAS, 0-33 points; adherent if ≥27). Appointment adherence was determined from appointment records over 6 months, classified as adherent if ≥70% of assessable appointments were kept.
Results: Mean age was 64.7±11.2 years; 56.4% were female. The mean GMAS score was 27.7±4.2; 71.8% reached the medication adherence threshold (95%CI: 65.1-77.6). Appointment adherence was 77.4% (95%CI: 71.1-82.7). In the multivariable models, education ≥high school (aOR=2.18), having a support person (aOR=2.88), and having received counseling (aOR=2.61) were associated with higher medication adherence; adverse drug effects were associated with lower adherence (aOR=0.29). For appointment adherence, travel time >60 minutes (aOR=0.32) and using ≥2 antihypertensive drugs (aOR=0.39) were associated with lower adherence; family support (aOR=3.33), counseling (aOR=2.71), and medication adherence (aOR=2.73) were associated with better appointment-keeping.
Conclusion: About three-quarters of patients achieved medication and appointment adherence, but a notable at-risk group remains, particularly those with adverse effects, polypharmacy, long travel time, or lack of support, warranting targeted screening and support.
Keywords
Medication adherence, appointment adherence, hypertension, GMAS, outpatient care
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References
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