Abstract
The purpose of this study was to develop the Brazilian version of the Voice Activity and Participation Profile (VAPP) protocol and to demonstrate its measure properties so that it could be used as a self-evaluation instrument about the quality of life of Brazilian patients with vocal complaints. The translation and validation were performed following the guidelines of the Scientific Advisory Committee of Medical Outcomes Trust. The instrument was administered to 50 patients, 25 with vocal complaint and 25 without it. The instrument was submitted to linguistic/cultural adaptation, validation, reliability, reproducibility, and responsiveness. The VAPP protocol is composed of 28 questions distributed into five aspects: self-perception of the vocal problem intensity, effects at work, effects at daily communication, effects at social communication, and effects at emotion. Two additional scores are included: limitation in activities (LA) and participation restriction (PR). The results showed that the Portuguese version of the VAPP protocol, called Perfil de Participação e Atividades Vocais (PPAV), is valid and reliable, presenting an acceptable reproducibility level, considering p<0.05. Responsiveness to treatment was determined by significant changes between results before and after treatment (self-awareness of the vocal problem intensity: 5.33/0.35, effects at work: 12.40/1.93, effects at daily communication: 42.55/6.75, effects at social communication: 7.05/2.42, effects at emotion: 62.5/61.9; LA: 33.3/2.81; PR: 28.7/8.28). The Brazilian version of the VAPP protocol is valid, reliable, and responsive to changes. Therefore, it can be proposed as a useful instrument to evaluate quality of life of dysphonic patients and the treatment outcomes.
Highlights
According to the World Health Organization (WHO), health is a multidimensional concept that includes absence of disease, and physical, mental, and social aspects[1]
Most of the instruments about quality of life are developed in English, and in order that they are validated in other languages, they should be submitted to a cultural and linguistic adaptation, with a careful translation, following rules that were established in literature and, later, they should have their measure proprieties demonstrated in a specific cultural context[5]
The objective of this study was to carry out the Brazilian version of Vocal Activity and Participation Profile (VAPP) protocol, concerning the self-evaluation impact of a dysphonia, which was developed in English, demonstrating its measure proprieties so that it can be used as an instrument to evaluate the quality of life of Brazilian patients with vocal complaints
Summary
According to the World Health Organization (WHO), health is a multidimensional concept that includes absence of disease, and physical, mental, and social aspects[1]. This concept was expanded incorporating the definition of quality of life, which was defined as the perception that an individual has of his/her position in life, taking into consideration objectives; expectations; personal interests; and social, cultural, and economical patterns[1]. Instruments that assess treatment results and quality of life should be carefully developed and present proved psychometric measures of reliability, validity, and responsiveness[3,4]. Most of the instruments about quality of life are developed in English, and in order that they are validated in other languages, they should be submitted to a cultural and linguistic adaptation, with a careful translation, following rules that were established in literature and, later, they should have their measure proprieties demonstrated in a specific cultural context[5]
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