Author + information
To investigate the status quo of health literacy among patients with hypertension and to analyze the association between health literacy, medication adherence and blood pressure control.
A total of 596 hypertensive patients from eight community health service centers in Shunyi District of Beijing were enrolled in this study. Physical examination containing blood pressure measurement and a questionnaire including demographic characteristic, Morisky Medication Adherence Scale and Health Literacy Scale for Hypertension were adopted to investigate the patients.
31.9% (190/596) patients had high level of medication adherence, and the percentage of patients with blood pressure under control reached 63.1%(376/596). Total score of health literacy of patients was 8.25 points with a quartile of (6.25, 10.18), while the ability of obtaining health related information was at a low level, with a score of 0.50 (0.00, 1.00) points and less than half of its full score. Kruskal-Wallis H Test found that: the abilities of communicating health related information (Hc=6.915, P=0.032) and reading comprehension (Hc=6.646, P=0.036) had association with medication adherence. Wilcoxon Test found that: total scores of health literacy (Z=-2.493, P=0.013), the abilities of interpreting drawings (Z=-3.187, P=0.001) and obtaining health related information (Z=-3.274, P=0.001) had association with blood pressure control. Ordinal Logistic regression analysis about medication adherence showed that: patients with higher total scores of health literacy (OR=1.088, 95%CI: 1.016∼1.163), especially with better abilities of communicating health related information (OR=1.745, 95%CI: 1.142∼2.664) and reading comprehension (OR=1.153, 95%CI: 1.023∼1.298), would have better medication adherence. Binary Logistic regression analysis about blood pressure control showed that: patients with better abilities of interpreting drawings (OR=1.242, 95%CI: 1.036∼1.488) and obtaining health related information (OR=1.461, 95%CI: 1.099∼1.942) would have better control of blood pressure.
Generally, the medication adherence among hypertensive patients was at a low level, blood pressure control of patients was at appropriate level, health literacy of patients was at moderate level, and some dimensions of health literacy were at poor level. Improving patient's health literacy would contribute to enhancing their medication adherence and blood pressure control.