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Eur Respir J. 2019 Jul 4;54(1). pii: 1801375. doi: 10.1183/13993003.01375-2018. Print 2019 Jul.

Development and validation of the Adolescent Asthma Self-Efficacy Questionnaire (AASEQ).

Author information

1
Clinical and Experimental Sciences and Human Development in Health, University of Southampton, Southampton, UK.
2
Both authors contributed equally.
3
Dept of Psychology, Aston University, Birmingham, UK.
4
School of Health Sciences, University of Southampton, Southampton, UK.
5
School of Psychology, University of Southampton, Southampton, UK.
6
Dept of Paediatric Psychology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
7
The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Isle of Wight, UK.
8
Dept of Paediatrics, Salisbury NHS Foundation Trust, Salisbury, UK.
9
NIHR/Wellcome Trust Clinical Research Facility, University Hospital Southampton NHS Foundation Trust, Southampton, UK.
10
NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK.

Abstract

Perceived self-efficacy is the belief that one can manage prospective situations. Good asthma self-management self-efficacy is associated with better asthma outcomes. However, a well-developed and validated tool to measure adolescent asthma self-management self-efficacy is lacking. Our objective was to develop and validate an Adolescent Asthma Self-Efficacy Questionnaire (AASEQ).The first stage of the study included a review of the literature, interviews with adolescents with asthma and consultations with parents and relevant healthcare professionals to develop a prototype scale. To assess reliability and validity, a further group of adolescents completed the prototype scale, the General Self-Efficacy Scale and KidCOPE (measures coping styles). Retesting was undertaken to assess longitudinal validity.Interviews with 28 adolescents and consultations with other stakeholders resulted in a 38-item prototype scale. Key themes were medication, symptom management, triggers, knowledge, attitude and beliefs around asthma, supportive relationships, schools and healthcare professionals. The prototype scale was completed by 243 adolescents. Factor and reliability analysis reduced it to a 27-item scale with four subsections: symptom management; medication; friends, family and school; and asthma beliefs. The 27-item scale had respectable to excellent internal consistency (α's 0.78-0.91) with results that were stable over time (intra-class correlation=0.82) in 63 subjects who completed it twice. Better adolescent asthma self-efficacy was associated with better general self-efficacy and indices of better asthma management.The AASEQ is a reliable and valid tool that is likely to aid future research and practice focused on adolescent asthma self-management and could be a useful intermediate outcome measure to assess the impact of behavioural interventions.

Conflict of interest statement

Conflict of interest: R. Knibb reports grants from Asthma UK, during the conduct of the study. Conflict of interest: S. Latter reports grants from Asthma UK, during the conduct of the study. Conflict of interest: C. Liossi reports grants from Asthma UK, during the conduct of the study. Conflict of interest: F. Mitchell has nothing to disclose. Conflict of interest: R. Radley has nothing to disclose. Conflict of interest: G. Roberts reports grants from Asthma UK, during the conduct of the study. Conflict of interest: S. Holley reports grants from Asthma UK, during the conduct of the study.

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