Medication adherence and blood pressure control: A preliminary assessment of the role of health insurance in Nigeria and Ghana

OBJECTIVES: This study sought to assess the current impact of health insurance coverage on medication adherence and blood pressure control of patients being managed for hypertension in Ghana and Nigeria. METHODS: The study was a prospective study among 109 patients with hypertension in two health facilities with similar population dynamics in Ghana and Nigeria. Patients were systematically selected, categorized as having health insurance coverage or not, and followed up monthly for 6 months. The outcome variables (medication adherence and blood pressure control) were then measured and compared at 6 months. Analysis was done using Stata with level of significance set at p ⩽ 0.05. RESULTS: There was a 90% insurance coverage among participants from Ghana compared to 15% from Nigeria. National Health Insurance Authority enrolees in both countries had better blood pressure control and medication adherence compared to non-enrolees (adjusted odds ratio = 2.6 and 4.5, respectively). CONCLUSION: National Health Insurance Authority enrolment was found to be poor among respondents in Nigeria compared to Ghana. Enrolment into the National health financing schemes in both countries led to better blood pressure control and medication adherence among patients with hypertension at primary health facilities. There is therefore the need for system strengthening to improve their sustainability.