Antihypertensive medication adherence and blood pressure control among central Alabama veterans.

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Abstract

Medication nonadherence is associated with adverse outcomes. To evaluate antihypertensive medication adherence and its association with blood pressure (BP) control, the authors described population adherence to prescribed antihypertensive medication (proportion of days covered ≥80%) and BP control (mean BP <140/90 mm Hg) among central Alabama veterans during the fiscal year 2015. Overall, 75.1% of patients receiving antihypertensive medication were considered adherent, and 66.1% had adequate BP control. Patients adherent to antihypertensive medication were more likely to have adequate BP control compared with patients classified as nonadherent (67.4% vs 62.0%; adjusted odds ratio 1.33; 95% confidence interval, 1.22-1.44 [P<.0001]). Among patients who had uncontrolled BP, 73.6% were considered adherent to medication. Adherence to antihypertensive medication was associated with adequate BP control; however, a substantial proportion of patients with inadequate BP control were also considered adherent. Interventions to increase BP control could address more aggressive medication management to achieve BP goals.

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