Abstract
Among adults, anxiety related to asthma has been acknowledged to influence asthma self-management. However, it has not been addressed in pediatric samples and there have been no measures developed to assess asthma-related anxiety in youth or parents. The objective of this study was to develop and test the psychometric properties of novel instruments assessing asthma-related anxiety: the Youth Asthma-Related Anxiety Scale (YAAS) and Parent Asthma-Related Anxiety Scale (PAAS). Scale items were analyzed for content validity. We determined the factor structure using exploratory factor analysis and tested the scales' psychometric properties with 285 Hispanic and African American early adolescents with uncontrolled asthma (mean age=12.8) and their parents (n=230) who participated in a larger randomized control trial testing the efficacy of an asthma intervention; control group families (134 youth and 103 parents) provided follow-up data to assess temporal stability. Both the YAAS and PAAS contained 2 factors with Cronbach alpha coefficients ranging from 0.75 to 0.90. The 2 factors, anxiety about asthma severity and about disease-related restrictions, were highly correlated within each measure. The measures displayed content and construct validity and demonstrated moderate temporal stability over 2-3 months (range: 0.36-0.42). The YAAS and PAAS have adequate psychometric properties and can meaningfully contribute to the assessment of asthma-related anxiety in adolescents and their parents, filling a clinical need in this population.
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