Prevalence and Predictors of Poor Antihypertensive Medication Adherence in an Urban Health Clinic Setting

Authors

  • Amanda D. Hyre MPH,

    1. From the School of Public Health and Tropical Medicine, Department of Epidemiology,1 and the School of Medicine, Section of General Internal Medicine,2Tulane University; and Ochsner Clinic Foundation, Center for Health Research;3 New Orleans, LA
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  • 1 Marie A. Krousel-Wood MD, MSPH,

    1. From the School of Public Health and Tropical Medicine, Department of Epidemiology,1 and the School of Medicine, Section of General Internal Medicine,2Tulane University; and Ochsner Clinic Foundation, Center for Health Research;3 New Orleans, LA
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  • 13 Paul Muntner PhD,

    1. From the School of Public Health and Tropical Medicine, Department of Epidemiology,1 and the School of Medicine, Section of General Internal Medicine,2Tulane University; and Ochsner Clinic Foundation, Center for Health Research;3 New Orleans, LA
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  • 1,2 Lumie Kawasaki MD, MBA,

    1. From the School of Public Health and Tropical Medicine, Department of Epidemiology,1 and the School of Medicine, Section of General Internal Medicine,2Tulane University; and Ochsner Clinic Foundation, Center for Health Research;3 New Orleans, LA
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  • and 2 Karen B. DeSalvo MD, MPH, MSc 1,2

    1. From the School of Public Health and Tropical Medicine, Department of Epidemiology,1 and the School of Medicine, Section of General Internal Medicine,2Tulane University; and Ochsner Clinic Foundation, Center for Health Research;3 New Orleans, LA
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Marie Krousel-Wood, MD, MSPH, Director, Center for Health Research, Ochsner Clinic Foundation, 1514 Jefferson Highway, New Orleans, LA 70121
E-mail: mawood@ochsner.org

Abstract

Poor medication adherence may contribute to low hypertension control rates. In 2005, 295 hypertensive patients who reported taking antihypertensive medication were administered a telephone questionnaire including an 8-item scale assessing medication adherence. Overall, 35.6%,36.0%, and 28.4% of patients were determined to have good, medium, and poor medication adherence, respectively. After multivariable adjustment, adults younger than 50 years and 51 to 60 years were 1.39 (95% confidence interval [CI], 0.56–3.42) and 1.53 (95% CI, 0.64–3.66),respectively, times more likely to be less adherent when compared with their counterparts who were older than 60 years. Black adults and men were 4.30 (95% CI, 1.06–17.5) and 2.45 (95% CI, 1.04–5.78) times more likely to be less adherent, respectively. Additionally, caring for dependents, an initial diagnosis of hypertension within 10 years, being uncomfortable about asking the doctor questions, and wanting to spend more time with the doctor if possible were associated with poor medication adherence. The current study identified a set of risk factors for poor antihypertensive medication adherence in the urban setting.

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