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Factors affecting medication adherence in patients with hypertension attending a tertiary hospital in southern Nigeria

T.I.A. Oseni
C.C. Affusim
T.O. Salam
B.F. Dele-Ojo
S.D. Ahmed
I.O. Edeawe
B.A. Suleiman


Introduction: Hypertension is one of the leading causes of morbidity and mortality globally. Blood pressure control is poor among patients with hypertension due to poor health-seeking behaviour, poor medication adherence, financial burden etc. This study aimed to determine the factors affecting medication adherence in patients with hypertension attending Irrua Specialist Teaching Hospital, Irrua, Nigeria. Its findings will improve blood pressure control among hypertensives and reduce the attendant overall morbidity and mortality.
Methods: This was a descriptive cross-sectional, hospital-based study that was conducted in the Family Medicine clinic of Irrua Specialist Teaching Hospital, Irrua, Nigeria. A total of 192 adult patients with hypertension were consecutively recruited. Data was collected using the open data kit with a semi-structured, interviewer-based questionnaire. Analysis was done using the Statistical Package for Social Sciences version 21.
Results: In this study, out of 192 respondents, 105 (54.7%) were males, 151 (78.7%) were married, 117 (60.9%) had secondary school education, 122 (63.5%) were non-NHIS (National Health Insurance Scheme) enrolees and 93 (48.4%) had uncontrolled blood pressure at presentation. The mean age of the respondents was 51±12 years. There was an association between medication adherence and female sex, being married, high monthly income, NHIS enrolees, and clinic appointment keeping. There was also association between blood pressure control and reduction in salt intake. Conclusion: Ensuring good financial status, with enrolment in health insurance scheme as well as advocating for regular clinic appointment will go a long way in achieving good blood pressure control and reducing related morbidity and mortality.