Discriminative properties and validity of a health status questionnaire in obstructive airway disease patients: the Airway Questionnaire 20

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dc.contributor.authorCamelier, Aquiles
dc.contributor.authorRosa, Fernanda W.
dc.contributor.authorNascimento, Oliver A. [UNIFESP]
dc.contributor.authorFerrandes, Ana Luiza G. [UNIFESP]
dc.contributor.authorJardim, José Roberto [UNIFESP]
dc.contributor.institutionUniversidade Federal da Bahia (UFBA)
dc.contributor.institutionUniv Estadual Bahia
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T13:49:14Z
dc.date.available2016-01-24T13:49:14Z
dc.date.issued2007-12-01
dc.description.abstractOBJECTIVE: To evaluate the discriminative properties and validity of the Airways Questionnaire 20 (AQ20) in a sample of patients with airway obstruction and to compare its properties with those of the St George's Respiratory Questionnaire (SGRQ) and the Short Form 36 (SF-36).PATIENTS and METHODS: A convenience sample of 47 subjects was recruited from among 61 consecutive patients referred to an outpatient clinic specialized in obstructive airway diseases. All subjects completed the AQ20, SGRQ, and SF-36. Other measures were the baseline dyspnea index (BDI), 6-minute walk test (6MWT) distance, spirometry, results of arterial blood gas analysis, and body mass index.RESULTS: the AQ20 showed very good correlation with the SGRQ total score (rho=0.84, P <.001) and moderate correlation with all SF-36 domains (physical capacity, rho=-0.53; physical functioning, rho=-0.61; bodily pain, rho=-0.55; general health, rho=4.59; vitality, rho=-0.55; social functioning, rho=-0.57; emotional role functioning, rho=-0.51; mental health, rho=-0.61; all P <.001). the BDI and the 6MWT distance were the best predictors of AQ20 score (r(2)=0.31) in the regression model. An area under the receiver operating characteristic curve of 0.91 (P <.001) indicated a high level of accuracy for the AQ20, using the SGRQ as the gold standard.CONCLUSION: This study shows that the AQ20 is an accurate health status questionnaire in patients with moderate-to-severe airway obstruction. It could be an alternative to longer, traditional questionnaires such as the SGRQ.en
dc.description.affiliationUniv Fed Bahia, Fac Ciencias & Tecnol, Div Resp, Salvador, BA, Brazil
dc.description.affiliationUniv Estadual Bahia, Univ Catolica Salvador, Fac Ciencias & Tecnol, Salvador, BA, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Div Resp, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Div Resp, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent662-668
dc.identifierhttp://www.archbronconeumol.org/en/discriminative-properties-validity-health-status/articulo-resumen/S1579212907601529/
dc.identifier.citationArchivos de Bronconeumologia. Barcelona: Ediciones Doyma S/l, v. 43, n. 12, p. 662-668, 2007.
dc.identifier.doi10.1157/13112964
dc.identifier.issn0300-2896
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/30165
dc.identifier.wosWOS:000251294000005
dc.language.isospa
dc.publisherEdiciones Doyma S/l
dc.relation.ispartofArchivos de Bronconeumologia
dc.rightsAcesso aberto
dc.subjectquestionnairesen
dc.subjectquality of lifeen
dc.subjecthealth statusen
dc.subjectstatisticsen
dc.subjectdyspneaen
dc.subjectchronic obstructive pulmonary diseaseen
dc.titleDiscriminative properties and validity of a health status questionnaire in obstructive airway disease patients: the Airway Questionnaire 20en
dc.typeArtigo
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