Psychosocial impact of Parkinson’s disease-associated dysarthria: cross-cultural adaptation and validation of the Dysarthria Impact Profile into european portuguese

• Autor(a) principal: Cardoso, Rita
• Data de Publicação: 2018
• Outros Autores: Guimarães, Isabel, Santos, Helena, Loureiro, Rita, Domingos, Josefa, Abreu, Daisy, Gonçalves, Nilza, Pinto, Serge, Ferreira, Joaquim
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.26/39984
• topic: Dysarthria; Dysarthria impact profile; Parkinson’s disease; Psychosocial impact; Speech

Aim: The present study sought to make a cross-cultural adaptation of the Dysarthria Impact Profile (DIP) for European Portuguese (EP) and validate it for use in Parkinson’s disease (PD) patients. Methods: The cross-cultural adaptation was carried out in accordance with the guidelines. The EP version of the DIP was administered to 80 people with PD, and 30 sex- and age-matched control participants. Psychometric properties, acceptability, feasibility reliability (internal consistency and intrarater agreement) and validity (construct, convergent and known-groups validity) were assessed using other assessment tools (motor disability and impairment, and voice impact). Results: Overall, the EP-DIP final version has the same conceptual meaning, semantics, idiomatic and score equivalences as the original version. Statistical analyses showed adequate feasibility (missing data <5%), good acceptability (ceiling or floor effects <15%; high requests of assistance to complete the questionnaire), satisfactory internal consistency (Cronbach’s α = 0.9), weak-to-moderate intrarater reliability, good construct validity, strong convergent validity (with the Voice Handicap Index; Spearman’s P = −0.8) and good known-groups validity (between those with PD and control participants). Conclusions: The EP-DIP version displays the salient features of a valid patient-based assessment tool used to measure the psychosocial impact of slight-to-mild dysarthria in people with PD.