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Using Information Technology to Reduce Asthma Disparities in Underserved Populations: A Pilot Study.

J Asthma. 2010 Sep 17. Vargas PA, Robles E, Harris J, Radford P. Department of Social and Behavioral Sciences, Arizona State University, Glendale, Arizona, U.S.A.

Background: Low health literacy has been identified as an independent predictor of poor asthma control. The Institute of Medicine considers the role of information technology (IT) as critical in providing "safe, effective, patient centered, timely, efficient, and equitable" care with the potential to reduce health disparities in underserved populations. The aim of this study was to design and evaluate an interactive computer-based questionnaire to assess asthma symptoms in children of parents with limited health literacy and/or limited English proficiency.

Methods: Volunteer caregivers attending a mobile asthma clinic were randomly assigned to complete the electronic or the paper-and-pencil version of an asthma screening questionnaire (ASQ) in their language of choice (English or Spanish). In the electronic version, a tablet computer was used to present the ASQ questions as video clips and to collect information through the touchscreen. Participants also completed a demographic questionnaire, a brief health literacy questionnaire, and a system usability and satisfaction questionnaire. Reliability of the paper and electronic self-assessments was evaluated by comparing each participant's answers to information they provided during a nurse-guided structured interview (gold standard).

Results: A total of 48 parents participated in the study, 26 completed the electronic ASQ and 21 the paper-and-pencil form. Thirty-five percent of the children had well-controlled asthma (n = 17). Most participants were Spanish speaking (67%) Hispanic (n = 44) mothers (n = 43) with a median age of 32 years. More than half had &#8804;8 years of education (n = 25) and earned <$20,000 per year (n = 27). The median health literacy score was 32 (range 0-36). The correlation between health literacy scores and years of education was significant (&#961; = .47, p < .01). Concordance between the electronic ASQ and the nurse interview was significantly higher than concordance between the paper ASQ and the nurse interview (68% versus 54%; p < .01). All parents who completed the electronic questionnaire reported being satisfied; 96% felt comfortable using it, and found it simple to use.

Conclusions: By facilitating the assessment of asthma symptoms at manageable cost, interactive information technology tools may help reduce barriers to access due to inadequate levels of English proficiency and health literacy.

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