Measurement properties of the Patient-Specific Functional Scale in individuals with asthma.

IF 1.3 4区医学 Q3 ALLERGY

Journal of Asthma Pub Date : 2025-09-25 DOI:10.1080/02770903.2025.2562580

Stephany Costa Franco, Luan Dos Santos Mendes-Costa, Gabriela Bezerra de Almeida, Isabella de Melo Matos, Simone Castelo Branco Fortaleza, Felipe V C Machado, Rafael Mesquita

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引用次数: 0

Abstract

Objective: To analyze the reliability, construct and content validity, ceiling and floor effects, acceptability, and feasibility of the Patient-Specific Functional Scale (PSFS) in individuals with asthma.

Methods: This methodological study included individuals with asthma. Sociodemographic and clinical characteristics, lung function (forced expiratory volume in one second - FEV₁), asthma control, and quality of life (Asthma Quality of Life Questionnaire - AQLQ) were assessed, in addition to the administration of the PSFS. Reliability, construct, and content validity, as well as ceiling/floor effects, were analyzed.

Results: One hundred participants were evaluated (88% women, mean age 56 ± 14 years), the mean PSFS score was 4.1 ± 2.3. Regarding reliability, the intraclass correlation coefficient was 0.95 (95% confidence interval (CI): 0.88-0.97, p < .0001). The PSFS showed a fair correlation with the AQLQ activity limitation domain (r = 0.34, p = .001) and a weak correlation with FEV₁ (r = 0.16, p = .19). Lower scores were observed in participants with poorer asthma control (p = .03). Ninety-seven percent of the activities reported in the PSFS were classified under the Activity and Participation domain of the International Classification of Functioning, Disability, and Health (ICF). No ceiling or floor effects were detected.

Conclusions: The PSFS demonstrated strong reliability, adequate validity, and no ceiling or floor effects, supporting its potential as a useful tool for assessing activity limitations in asthma.

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哮喘患者特异性功能量表的测量特性。

目的：分析哮喘患者特异性功能量表（PSFS）的信度、结构和内容效度、上限和下限效应、可接受性和可行性。方法：本方法学研究纳入了哮喘患者。除了使用PSFS外，还评估了社会人口统计学和临床特征、肺功能（一秒用力呼气量- FEV1）、哮喘控制和生活质量（哮喘生活质量问卷- AQLQ）。信度、结构和内容效度以及天花板/地板效应进行了分析。结果：共纳入100例患者，其中女性88%，平均年龄56±14岁，PSFS平均评分4.1±2.3分。信度方面，类内相关系数为0.95 （95% CI: 0.88 ~ 0.97, p < 1, r = 0.16, p = 0.19）。哮喘控制较差的参与者得分较低（p = 0.03）。PSFS中报告的97%的活动属于国际功能、残疾和健康分类（ICF）的活动和参与领域。没有检测到天花板或地板效应。结论：PSFS具有很强的信度，足够的效度，没有上限或下限效应，支持其作为评估哮喘活动限制的有用工具的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Asthma 医学-过敏

CiteScore

4.00

自引率

5.30%

发文量

158

审稿时长

3-8 weeks

期刊介绍： Providing an authoritative open forum on asthma and related conditions, Journal of Asthma publishes clinical research around such topics as asthma management, critical and long-term care, preventative measures, environmental counselling, and patient education.