156 345

Cited 0 times in

Development and evaluation of an Asthma-Specific Quality of Life (A-QOL) questionnaire.

Authors
Lee, EH; Kim, SH; Choi, JH; Jee, YK; Nahm, DH; Park, HS
Citation
The Journal of asthma : official journal of the Association for the Care of Asthma, 46(7):716-721, 2009
Journal Title
The Journal of asthma : official journal of the Association for the Care of Asthma
ISSN
0277-09031532-4303
Abstract
BACKGROUND: Few health-related quality of life (HRQOL) studies of asthma patients have been conducted in Korea, mainly due to the lack of a psychometrically validated asthma-specific instrument.



OBJECTIVE: The aims of the present study were to develop and evaluate an instrument for assessing HRQOL in Korean asthma patients (asthma-specific quality of life, [A-QOL]).



METHODS: Items were generated using in-depth interviews and a review of the literature and were subsequently reviewed by a panel of experts. Content-validated items were evaluated psychometrically with the aid of 422 asthma patients who were recruited from university hospitals in South Korea. The participants were asked to complete a preliminary A-QOL questionnaire (comprising the content-validated items), the Asthma Control Test, the Center for Epidemiologic Studies-Depression Survey (CES-D), and the Short Form-36 Health Survey. The Global Initiative for Asthma Guideline classification was also used to classify the severity of asthma. The psychometric properties of the data were analyzed.



RESULTS: Thirty-six preliminary items were generated, from which factor analysis extracted a six-factor solution. Six of the items were not loaded significantly on any of the factors, such that they were not heterogeneous items. Multi-trait scaling analysis supported item convergence and discriminant validity. The A-QOL was associated significantly with the CES-D. Patients with controlled asthma had higher A-QOL scores than those whose asthma was not controlled. The quality of life measured by the A-QOL was more sensitive than that measured by the generic Short Form-36 Health Survey. The values of Cronbach's alpha for the subscales of the A-QOL were all greater than 0.70. The responsiveness of all subscales, excluding the "environmental distress" subscale, was established.



CONCLUSIONS: The A-QOL is an easily applied tool that exhibits good psychometric properties for asthma patients. The A-QOL questionnaire is valid for and can be used reliably in both practice and clinical trials.
MeSH terms
AdolescentAdultAgedAsthma/diagnosisAsthma/psychology*Asthma/therapyComprehensionData Interpretation, StatisticalDepression/diagnosisDepression/psychologyFactor Analysis, StatisticalFemaleHumansKoreaMaleMiddle AgedPsychometricsQuality of Life*Questionnaires*Reproducibility of Results
DOI
10.1080/02770900903067887
PMID
19728212
Appears in Collections:
Journal Papers > Graduate School of Public Health > Public Health
Journal Papers > School of Medicine / Graduate School of Medicine > Allergy
AJOU Authors
이, 은현남, 동호박, 해심
Files in This Item:
Full-Text Not Available.txtDownload
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse