Abstract
<b>Introduction:</b> Recent updates on Pulmonary Rehabilitation highlight the importance of patients’ self-efficacy on long-term adherence to health-enhancing behaviors. The Pulmonary Rehabilitation Adapted Index of Self-Efficacy (PRAISE) is an adaptation of the General Self-Efficacy Scale. <b>Aims and Objectives:</b> Translate, culturally adapt and evaluate reliability and validity of PRAISE on Portuguese respiratory patients. <b>Methods:</b> Forward-backward translation and a pilot test were performed. Content validity was assessed by a multidisciplinary panel of expert judges. To evaluate reliability and validity, 150 respiratory outpatients on Pulmonary Rehabilitation participated on a cross-sectional study. Descriptive and reliability analyses, and exploratory factorial analysis using principal axis factoring, followed by oblique oblimin factor rotation were conducted to identify construct validity. IBM® SPSS®, version 22 was used to perform statistical analysis. <b>Results:</b> 150 patients with a mean age of 67 years, 54% male and 83% currently on Pulmonary Rehabilitation participated on the study. These included Chronic Obstructive Pulmonary Disease patients (46.7%), Bronchiectasis (20%), Interstitial Lung Disease (20%) and other respiratory diseases. Exploratory factor analysis extraction provided a 4-factor solution that cumulatively explained 52.3% of total variance (F1: 26.6%; F2: 9.7%; F3: 8.7%; F4: 7.3%). Portuguese PRAISE showed a reliability of 0.78 (Chronbach alpha). <b>Conclusions:</b> The Portuguese version of PRAISE showed adequate psychometric properties to be used as an instrument to measure self-efficacy as a patient-centered outcome on Pulmonary Rehabilitation.
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