Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho ... UNINOVE, Rua Vergueiro, 235/249 ... 2.. Subsolo, 01504-001, S.·o Paulo, Brazil.
Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho ... UNINOVE, Rua Vergueiro, 235/249 ... 2.. Subsolo, 01504-001, S.·o Paulo, Brazil.
Pulmonology. 2023 Jan-Feb;29(1):42-49. doi: 10.1016/j.pulmoe.2020.10.012. Epub 2020 Dec 30.
The Bronchiectasis Health Questionnaire (BHQ) is a simple, repeatable, and self-reporting health status questionnaire for bronchiectasis. This study aims to cross-culturally adapt the BHQ into Brazilian Portuguese and evaluate its measurement properties.
The participants answered the Saint George...s Respiratory Questionnaire (SGRQ) and the modified Medical Research Council (mMRC) scale for dyspnea. The Brazilian-Portuguese version of the Bronchiectasis Health Questionnaire (BHQ-Brazil) was used at baseline (test) and after 14 days (retest). The psychometric analyses included internal consistency, test-retest reliability, and construct validity: factorial validity, convergent validity, and discriminative validity, agreement, and ceiling and floor effects.
The BHQ-Brazil demonstrated adequate internal consistency (Cronbach...s alpha...=...0.92) and substantial reliability (intraclass correlation coefficient...=...0.86; 95%CI: 0.79...0.90). The exploratory factorial analysis was considered suitable. All items presented a factorial load >0.40. The convergent validity of the BHQ-Brazil with mMRC was moderate (r...=......0.53, p...<...0.001), while concurrent validity with the SGRQ was strong (symptoms: r...=......0.72, activities: r...=......0.60, impact: r...=......0.60, total score: r...=......0.75, all p...<...0.001). The standard error of measurement was 4.81 points. The discriminative validity demonstrated that individuals with more pulmonary exacerbations, colonization by Pseudomonas aeruginosa, worst dyspnea, and a higher number of affected lung lobes presented the lowest quality of life. No floor or ceiling effects were observed.
The BHQ-Brazil presents adequate measurement properties to evaluate the impact of bronchiectasis on health-related quality of life, and can be used in clinical and research settings.
支气管扩张健康问卷（BHQ）是一种简单、可重复、自我报告的支气管扩张健康状况问卷。本研究旨在将 BHQ 跨文化改编为巴西葡萄牙语，并评估其测量特性。
参与者回答圣乔治呼吸问卷（SGRQ）和改良的医学研究委员会呼吸困难量表（mMRC）。在基线（测试）和 14 天后（复测）使用支气管扩张健康问卷巴西葡萄牙语版（BHQ-Brazil）。心理测量学分析包括内部一致性、测试-复测可靠性和结构效度：因子有效性、收敛有效性和判别有效性、一致性、天花板和地板效应。
BHQ-Brazil 表现出足够的内部一致性（Cronbach's alpha=0.92）和良好的可靠性（组内相关系数=0.86；95%CI：0.79-0.90）。探索性因子分析被认为是合适的。所有项目的因子负荷均>0.40。BHQ-Brazil 与 mMRC 的收敛有效性为中度（r=0.53，p<0.001），与 SGRQ 的同时有效性为强（症状：r=0.72，活动：r=0.60，影响：r=0.60，总分：r=0.75，均 p<0.001）。测量误差的标准误差为 4.81 分。区分有效性表明，肺部恶化次数较多、铜绿假单胞菌定植、呼吸困难最严重、受影响的肺叶数量最多的个体生活质量最低。未观察到地板或天花板效应。
BHQ-Brazil 具有足够的测量特性，可以评估支气管扩张对健康相关生活质量的影响，可用于临床和研究环境。
