Objectives: To evaluate the association between low literacy and uncontrolled blood pressure (BP) and their associations with medication adherence. Methods: Cross-sectional study of 423 urban, primary care patients with hypertension and coronary disease. The relationship between low literacy (Rapid Estimate of Adult Literacy in Medicine. ≤. 44) and uncontrolled BP (≥140/90. mmHg, ≥130/80. mmHg for patients with diabetes) was evaluated by crude and adjusted logistic regression. Relationships with self-reported adherence and refill adherence were explored using adjusted linear and logistic regression. Results: Overall, 192 (45%) subjects had low literacy and 227 (52.9%) had uncontrolled BP. Adjusting for age, gender, race, employment, education, mental status, and self-reported adherence, low literacy was associated with uncontrolled BP (OR 1.75, 95% CI 1.06-2.87). Lower self-reported adherence was associated with uncontrolled BP; the relationship between refill adherence and uncontrolled BP was not statistically significant. Conclusion: Low literacy is independently associated with uncontrolled BP. Practice implications: Awareness of the relationships among patient literacy, BP control, and medication adherence may guide healthcare providers as they communicate with patients. © 2014 Elsevier Ireland Ltd.
CITATION STYLE
McNaughton, C. D., Jacobson, T. A., & Kripalani, S. (2014). Low literacy is associated with uncontrolled blood pressure in primary care patients with hypertension and heart disease. Patient Education and Counseling, 96(2), 165–170. https://doi.org/10.1016/j.pec.2014.05.007
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