期刊
MEDICAL CARE
卷 52, 期 4, 页码 346-353出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MLR.0000000000000101
关键词
health literacy; hospitalized patients; hypertension; blood pressure
类别
资金
- National Heart, Lung, and Blood Institute [R21 HL096581]
- National Center for Advancing Translational Sciences [UL1 RR024975-01, 2 UL1 TR000445-06]
- Vanderbilt Emergency Medicine Research Training Program [K12HL109019]
Background: The clinical consequences of low health literacy are not fully understood. Objectives: We evaluated the relationship between low health literacy and elevated blood pressure (BP) at hospital presentation. Research Design and Subjects: We conducted a cross-sectional evaluation of adult patients hospitalized at a university hospital between November 1, 2010 and April 30, 2012. Measures: Health literacy was assessed using the Brief Health Literacy Screen (BHLS). Low health literacy was defined as a BHLS score <= 9. BP was assessed using clinical measurements. The outcome was elevated BP (>= 140/90mm Hg; >= 130/80mm Hg with diabetes or renal disease) or extremely elevated BP (> 160/100mm Hg) at hospital presentation. Multivariate logistic regression adjusted for age, sex, race, insurance, comorbidities, and antihypertensive medications; preplanned restricted analysis among patients with diagnosed hypertension was performed. Results: Of 46,263 hospitalizations, 23% had low health literacy, which occurred more often among patients who were older (61 vs. 54 y), less educated (28.4% vs. 11.2% had not completed high school), and more often admitted through the emergency department (54.3% vs. 48.1%) than those with BHLS > 9. Elevated BP was more frequent among those with low health literacy [40.0% vs. 35.5%; adjusted odds ratio (aOR) 1.06; 95% confidence interval (CI), 1.01-1.12]. Low health literacy was associated with extremely elevated BP (aOR 1.08; 95% CI, 1.01-1.16) and elevated BP among those without diagnosed hypertension (aOR 1.09; 95% CI, 1.02-1.16). Conclusions: More than 1/3 of patients had elevated BP at hospital presentation. Low health literacy was independently associated with elevated BP, particularly among patients without diagnosed hypertension.
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