The construction and validation of the Severe Asthma Questionnaire
dc.contributor.author | Hyland, ME | |
dc.contributor.author | Jones, Rupert | |
dc.contributor.author | Lanario, Joseph | |
dc.contributor.author | Masoli, M | |
dc.date.accessioned | 2018-06-19T12:07:32Z | |
dc.date.available | 2018-06-19T12:07:32Z | |
dc.date.issued | 2018-07-01 | |
dc.identifier.issn | 0903-1936 | |
dc.identifier.issn | 1399-3003 | |
dc.identifier.other | 1800618 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/11678 | |
dc.description.abstract |
BACKGROUND: The USA's 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 the final quantitative validating data. METHODS: The severe asthma questionnaire (SAQ), asthma control test (ACT), MiniAQLQ, 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, an SAQ score based on the average of 16 items and a SAQ-global score from a single 100-point global quality of life scale. RESULTS: Construct validity was demonstrated through 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. CONCLUSIONS: The SAQ was developed using recommended qualitative and quantitative procedures for scale development, and can be used to gain insight into patients' perceptions of the impact of severe asthma and its treatment on their lives. | |
dc.format.extent | 0-0 | |
dc.format.medium | Electronic-Print | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | European Respiratory Society | |
dc.subject | Adolescent | |
dc.subject | Adult | |
dc.subject | Aged | |
dc.subject | Asthma | |
dc.subject | Factor Analysis, Statistical | |
dc.subject | Female | |
dc.subject | Humans | |
dc.subject | Male | |
dc.subject | Middle Aged | |
dc.subject | Patient Reported Outcome Measures | |
dc.subject | Quality of Life | |
dc.subject | Reproducibility of Results | |
dc.subject | Severity of Illness Index | |
dc.subject | Surveys and Questionnaires | |
dc.subject | Young Adult | |
dc.title | The construction and validation of the Severe Asthma Questionnaire | |
dc.type | journal-article | |
dc.type | Journal Article | |
dc.type | Research Support, Non-U.S. Gov't | |
dc.type | Validation Study | |
plymouth.author-url | https://www.ncbi.nlm.nih.gov/pubmed/29794132 | |
plymouth.issue | 1 | |
plymouth.volume | 52 | |
plymouth.publication-status | Published | |
plymouth.journal | European Respiratory Journal | |
dc.identifier.doi | 10.1183/13993003.00618-2018 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Health | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA03 Allied Health Professions, Dentistry, Nursing and Pharmacy | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA03 Allied Health Professions, Dentistry, Nursing and Pharmacy/UoA03 Allied Health Professions, Dentistry, Nursing and Pharmacy MANUAL | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Centre for Brain, Cognition and Behaviour (CBCB) | |
plymouth.organisational-group | /Plymouth/Research Groups/Centre for Brain, Cognition and Behaviour (CBCB)/Behaviour | |
plymouth.organisational-group | /Plymouth/Research Groups/FoH - Community and Primary Care | |
plymouth.organisational-group | /Plymouth/Research Groups/Institute of Health and Community | |
plymouth.organisational-group | /Plymouth/Research Groups/Institute of Translational and Stratified Medicine (ITSMED) | |
plymouth.organisational-group | /Plymouth/Research Groups/Institute of Translational and Stratified Medicine (ITSMED)/CCT&PS | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
dc.publisher.place | England | |
dcterms.dateAccepted | 2018-05-14 | |
dc.rights.embargodate | 2019-7-1 | |
dc.identifier.eissn | 1399-3003 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1183/13993003.00618-2018 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2018-07-01 | |
rioxxterms.type | Journal Article/Review |