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J Clin Hypertens (Greenwich). 2011 Oct;13(10):750-7. doi: 10.1111/j.1751-7176.2011.00497.x. Epub 2011 Jul 14.

Development and evaluation of a hypertension knowledge test for Korean hypertensive patients.

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  • 1Johns Hopkins University School of Nursing, Baltimore, MD 21205-2110, USA. hhan@son.jhmi.edu

Abstract

Patients' knowledge concerning high blood pressure (HBP) is a useful outcome measure in HBP education programs. However, valid and easy-to-use HBP knowledge assessment tools are scarce. The purpose of the study was to validate the HBP Knowledge Test (HKT) in two independent samples of Korean Americans with HBP (N=885). A total of 61% of the sample were women with a mean age of about 61 years (standard deviation=11.0) and 44% reported some college education or greater. Psychometric and item response theory analyses identified 21 items that fit a unidimensional model to form the HKT. Internal consistency was acceptable, with Cronbach's α=0.70. Construct validity testing revealed that patients with controlled BP had significantly higher HKT scores than those with uncontrolled BP (P=.012). The HKT is a simple questionnaire for assessing and monitoring HBP knowledge. It is sensitive to differences in blood pressure control status and should provide a valid, reliable, and standardized measure of HBP knowledge with wide relevance.

TRIAL REGISTRATION:

ClinicalTrials.gov NCT00406614 NCT00473681.

© 2011 Wiley Periodicals, Inc.

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