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    题名: Domain-specific calibrations of WHOQOL-BREF in COPD patients, Quality of Life Research 2004,13(9)1562~1562
    作者: 梁文敏(Liang,Wen-Miin);(Chen HW);(Chen JJ);(Hsia TC);(Hang LW)
    贡献者: 公共衛生學院環境醫學研究所
    日期: 2004-10-16
    上传时间: 2009-09-04
    摘要: AIMS: The aim of this study is to calibrate the items of each domain of WHOQOL-BREF for COPD patients to better understand the discriminating ability and difficulty of each item applied in COPD patients. METHODS: From 2001 to 2004, a total of 303 COPD patients aged 45 to 85 years were recruited. Patients' HRQOL were assessed by WHOQOL-BREF which includes 4 domains: physical (PH), psychological (PS), social (SO) and environmental (EN). The 2-parameter IRT model (Graded Response Model) was used to calibrate the items of each domain of WHOQOL-BREF on the same scale. The first and last location parameter estimates provide an indication about the extremes of ability (or difficulty) that are measured. RESULTS: The results show that the most discriminating items are 'the activities of daily living' in PH, 'the enjoyment of life' in PS, 'the personal relationships' in SO, and 'the home environment' in EN. The least discriminating items are 'dependence on medication or treatment' in PH, 'negative feeling' in PS, 'sexual activity' in SO, and 'transportation' in EN. The items with the lowest location parameter are 'sleep and rest' in PH, 'the self-satisfaction' in PS, 'the sexual activity' in SO, 'the eating food' in EN, The items with the largest location parameter are 'the dependence on medication or treatment' in PH, 'the thinking and concentration' in PS, 'the sexual activity' in SO, and 'the transportation' in EN. The contents and applicability for COPD patients of poorly discriminating items and extreme items are discussed. CONCLUSIONS: The results can provide a useful reference for item reduction and computerized adaptive testing approaches applied in COPD patients.
    關聯: The 11th Annual Conference of ISOQOL
    显示于类别:[環境醫學研究所(已停用)] 會議論文

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