• Di Shi, Jiangbo Li, Yong Wang, Si Wang, Kai Liu, Rufeng Shi, Qiang Zhang, and Xiaoping Chen.
• Department of Cardiology, West China Hospital, Sichuan University, Chengdu, 610041, China.
• Intern Emerg Med. 2017 Sep 1; 12 (6): 765-776.

AbstractLow health literacy is associated with poor clinical outcomes. The relationship between literacy and blood pressure (BP) has been inconsistent. We investigated the determinants of health literacy and the potential relationship between health literacy and hypertension management. We conducted a retrospective cohort trial of 360 hypertensive patients. Scale measurements, physical examination, and laboratory tests were performed based on a standard protocol. To determine factors associated with health literacy, multiple logistic regression analysis was performed and the discriminatory power of the scale score for hypertension control was assessed by the area under the receiver operating curve. After adjusting for potential confounders, our findings show that the level of education, home blood pressure measurement, regular medication, and systolic blood pressure are significantly associated with health literacy. Moreover, patients with high health literacy have better hypertension control, a lower risk of ischemic cardiovascular disease (ICVD), lower brachial ankle pulse wave velocity values, and better health-related quality of life. In addition, our study also demonstrates that we can identify the health literacy level of hypertensive patients using the Chinese Health Literacy Scale for Hypertension. At a cut-off value of 13.5, we predict that patients will achieve long-term hypertension control. Adequate health literacy is a contributing factor to better blood pressure (BP) control and better perceived quality of life in hypertensive patients. Low health literacy increases the 10-year risk of ICVD and incidence of artery stiffness in hypertensive patients. Improving health literacy should be considered an important part of the management of hypertension.

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