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Development and validation of the high blood pressure-focused health literacy scale
Miyong T Kim1, Hee-Jung Song, Hae-Ra Han
1Johns Hopkins University School of Nursing, Baltimore, MD 21205-2110, USA. mkim@son.jhmi.edu
Objective:
While the role of health literacy in chronic disease management is well documented, few intervention studies have been reported. A major barrier to designing and implementing such interventions is the lack of valid health literacy tools. This study developed and tested a novel health literacy scale for individuals with high blood pressure (HBP).
Methods:
A two-step design process was used: In the construction phase, focus group studies and a literature review were conducted to generate a pool of items. The testing phase involved a psychometric evaluation and pilot-testing of the scale on hypertensive Korean Americans (n=386). The end product was a HBP-health literacy scale (HBP-HLS) with two essential domains, print literacy and functional health literacy.
Results:
Psychometric testing indicated that the scale was reliable (Kuder-Richardson-20 coefficient=0.98), valid (content validity index ≥0.8), and significantly correlated with theoretically selected variables (education, r=0.67, p<0.01; HBP knowledge, r=0.33, p<0.01).
Conclusion:
The HBP-HLS demonstrated its utility for evaluating HBP management interventions in the community setting.
Practice Implications:
Utilizing the HBP-HLS should be considered as a potential tool for improving health literacy and evaluating intervention studies in the context of HBP management.
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