ArticleThe European respiratory journal2018
The construction and validation of the Severe Asthma Questionnaire.
Article in The European respiratory journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
28 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Validity and Responsiveness of EQ-5D in Asthma: A Systematic Review and Meta-analysis.The patient · 2025Pooled it
- Development of Core Outcome Measures sets for paediatric and adult Severe Asthma (COMSA).The European respiratory journal · 2023Pooled it
- The Feasibility and Acceptability of Culturally Appropriate Pulmonary Rehabilitation for Adults with Chronic Obstructive Pulmonary Disease in Sri Lanka: Randomized Controlled Trial.International journal of chronic obstructive pulmonary disease · 2026Trial
- How does the EQ-5D-5L perform in asthma patients compared with an asthma-specific quality of life questionnaire?BMC pulmonary medicine · 2020Trial
- Evidence for similarity in symptoms and mechanism: The extra-pulmonary symptoms of severe asthma and the polysymptomatic presentation of fibromyalgia.Immunity, inflammation and disease · 2019Trial
- Characteristics and asthma control status in the Korean Severe Asthma Registry-2: a real-world analysis.ERJ open research · 2026Article
- Association between asthma control and health-related quality of life in severe asthma: a cross-sectional study from KoSAR.ERJ open research · 2025Article
- Validation and cross-cultural insights of the French translation of the Severe Asthma Questionnaire.ERJ open research · 2025Article
- A lifestyle educational course as an adjunct to biologic administration in patients with severe asthma: A feasibility study.PEC innovation · 2025Article
- Patient-centred composite scores as tools for assessment of response to biological therapy for paediatric and adult severe asthma.The European respiratory journal · 2025Article
- Article
- Impact of comorbidities on EQ-5D quality-of-life index in severe asthma.The journal of allergy and clinical immunology. Global · 2024Article
- The illness burden of severe asthma contrasted to people with mild-to-moderate asthma: a qualitative study.ERJ open research · 2024Article
- Review
- Definitions of non-response and response to biological therapy for severe asthma: a systematic review.ERJ open research · 2023Review
- Development and linguistic validation of the Korean version of the Severe Asthma Questionnaire.Journal of thoracic disease · 2023Article
- A Renewed Charter: Key Principles to Improve Patient Care in Severe Asthma.Advances in therapy · 2022Article
- "Life-changing": the experience of super-responders to biologics in severe asthma.BMC pulmonary medicine · 2022Article
- Preliminary development of a questionnaire to measure the extra-pulmonary symptoms of severe asthma.BMC pulmonary medicine · 2021Article
- The Severe Asthma Questionnaire: sensitivity to change and minimal clinically important difference.The European respiratory journal · 2021Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The US Food and Drug Administration's procedure for scale validation requires a documented stepwise process of qualitative and quantitative data. The aim of this paper is to provide final quantitative validating data for the Severe Asthma Questionnaire (SAQ).The SAQ, Asthma Control Test, Mini Asthma Quality of Life Questionnaire and EQ-5D-5L were completed by 160 patients attending a severe asthma clinic; 51 patients completed the SAQ on two occasions for test-retest reliability analysis. The SAQ produces two scores, a SAQ score based on the average of 16 items and a SAQ-global score from a single 100-point global quality of life scale.Construct validity was demonstrated by factor analysis of the 16 items, convergent validity by correlations of >0.6 between the SAQ, SAQ-global and other questionnaires, and discriminant validity by the ability of the SAQ and SAQ-global to distinguish between different treatment levels. Test-retest reliability (intra-class correlation) was 0.93 for the SAQ and 0.93 for the SAQ-global, and the alpha coefficient for the SAQ was 0.93.The SAQ was developed using recommended qualitative and quantitative procedures for scale development, and can be used to gain insight into patients' perceptions of how severe asthma and its treatment affects their lives.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.