Development and testing of the modified version of the Pulmonary Functional Status and Dyspnea Questionnaire (PFSDQ-M)
Development and testing of the modified version of the Pulmonary Functional Status and Dyspnea Questionnaire (PFSDQ-M)
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DOI：
10.1016/s0147-9563(98)90003-6
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发表时间：
1998-05-01
期刊：
影响因子：
2.8
通讯作者：
Roos, PJ
中科院分区：
文献类型：
--
作者：
Lareau, SC;Meek, PM;Roos, PJ
目的：描述将肺功能状态和呼吸困难问卷（PFSDQ）从164个项目减少为修改后的问卷的开发和测试过程（PFSDQ-M）包括40个条目。设计：仪器开发和信度、效度和实用性测试。设置：医院门诊患者。患者：对三组临床稳定的慢性阻塞性肺疾病患者进行测试：对131名受试者进行项目选择、信度和效度的二次分析;另外50名受试者评估PFSDQ-M的内部一致性、重测相关性和结构效度; 34名受试者来自一项纵向研究，评估反应性。PFSDQ-M的实用性得到了其六至七年级阅读水平、阅读容易程度（Flesch-Kincaid 69.5），自我给药短暂的测试时间（最初7分钟，重复测试6分钟），和有限的缺失数据（< 8%）。三个组成部分的可靠性得到了内部一致性α = 0.93的支持，对于患者活动（CA）经历的变化，0.95的活动呼吸困难（DA）和0.95的活动疲劳（FA）。在重测中证明PFSDQ-M具有良好的稳定性;变化的r = 0.70，呼吸困难的r = 0.83，疲劳（活动）的r = 0.79。PFSDQ-M在区分呼吸困难评分的患者的基础上，他们的恶化率在肺功能demonstrated.CONCLUSIONS：PFSDQ进行了修改，减少评估活动的数量，标准化的缩放格式，并增加了疲劳成分的有用性。研究结果表明，PFSDQ-M显示出初始可靠性;良好的有效性估计，如因子分析所示，呼吸困难和活动评分随着时间的推移对肺功能的生理变化有反应。
OBJECTIVE: Describe the process of development and testing to reduce the Pulmonary Functional Status and Dyspnea Questionnaire (PFSDQ) from 164 items to a modified questionnaire (the PFSDQ-M) consisting of 40 items.DESIGN: Instrument development and testing for reliability, validity, and practicality.SETTING: Hospital-based outpatients.PATIENTS: Testing was done on three groups of clinically stable patients with chronic obstructive pulmonary disease: a secondary analysis of 131 subjects for item selection, reliability, and validity; 50 additional subjects evaluating the PFSDQ-M for internal consistency, test-retest correlations, and construct validity; and 34 subjects from a longitudinal study for responsiveness.OUTCOME MEASURES: PFSDQ, PFSDQ-M, and spirometry.RESULTS: The practicality of the PFSDQ-M was supported by its sixth-to seventh-grade reading level, ease of reading (Flesch-Kincaid 69.5), self-administration brief period for testing (7 minutes initially, 6 minutes on repeated testing), and limited missing data (< 8%). Reliability of the three components was supported by internal consistency alpha = 0.93 for change experienced by the patient with activities (CA), 0.95 for dyspnea with activities (DA), and 0.95 for fatigue with activities (FA). Good stability of the PFSDQ-M was demonstrated on test-retest; r = 0.70 for change, 0.83 for dyspnea, and 0.79 for fatigue (with activities). The usefulness of the PFSDQ-M in discriminating between dyspnea scores in patients based on their rate of deterioration in lung function was demonstrated.CONCLUSIONS: The PFSDQ was modified by reducing the number of activities evaluated, standardizing scaling formats, and adding a fatigue component. Findings suggest that the PFSDQ-M demonstrates initial reliability; good validity estimates, as seen with the factor analysis, and the dyspnea and activity scores appear responsive to physiologic changes in lung function over time.