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CC BY 4.0 · Arq Neuropsiquiatr 2023; 81(09): 816-824
DOI: 10.1055/s-0043-1772832
Original Article

Brazilian version of the CHOP INTEND scale: cross-cultural adaptation and validation

Versão brasileira da escala CHOP INTEND: adaptação transcultural e validação
Renalli Manuella Rodrigues Alves 
1   Instituto de Medicina Integral Professor Fernando Figueira, Pós-graduação em Saúde Integral, Recife PE, Brazil.
2   Hospital Otávio de Freitas, Departamento de Reabilitação, Recife PE, Brazil.
,
Alessandra Paula de Melo Calado 
3   Hospital Maria Lucinda/Rarus, Serviço de Doenças Raras, Recife PE, Brazil.
4   Universidade Federal de Pernambuco, Centro de Ciências da Saúde, Recife PE, Brazil.
,
Vanessa Van Der Linden 
3   Hospital Maria Lucinda/Rarus, Serviço de Doenças Raras, Recife PE, Brazil.
4   Universidade Federal de Pernambuco, Centro de Ciências da Saúde, Recife PE, Brazil.
,
Maria Aparecida Ferreira Chaves Bello 
4   Universidade Federal de Pernambuco, Centro de Ciências da Saúde, Recife PE, Brazil.
5   Associação de Assistência à Criança Deficiente, Serviço de Fisioterapia, Recife PE, Brazil.
,
Lívia Barboza de Andrade 
1   Instituto de Medicina Integral Professor Fernando Figueira, Pós-graduação em Saúde Integral, Recife PE, Brazil.
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Abstract

Background Spinal muscular atrophy (SMA) is a rare genetic disease that causes progressive muscle weakness and impacts motor function. The type I is the most severe presentation and affects infants before 6 months old. In addition, the instruments available for assessing motor function have limitations when applied to infants with neuromuscular diseases and significant muscle weakness.

Objective To translate, cross-culturally adapt, and validate the Children's Hospital of Philadelphia Infant Test of Neuromuscular Disorders (CHOP INTEND) to Brazilian Portuguese.

Methods The present study comprised the translation, synthesis of translations, backtranslation, consolidation by a committee of experts, and test of the final version of the CHOP INTEND in 13 patients with SMA type I. We also assessed the content validity and reliability of the translated version.

Results The scale was translated considering semantic, structural, idiomatic, and cultural aspects. All agreement rates were > 0.8, the overall content validity index of the instrument was 0.98, and inter-rater reliability using the intraclass correlation coefficient was 0.998.

Conclusion The Brazilian version of the CHOP INTEND met semantic and technical equivalence criteria with the original version and was valid and reliable for patients with SMA type I.

Resumo

Antecedentes A atrofia muscular espinhal (AME) é uma doença genética rara que provoca fraqueza muscular progressiva com impacto sobre a motricidade dos pacientes. A AME tipo I é considerada o tipo mais grave e acomete lactentes antes dos 6 meses de idade. As escalas disponíveis para avaliação das aquisições motoras mostram limitações para uso com crianças pequenas com doenças neuromusculares e fraqueza importante.

Objetivo Realizar a tradução, adaptação transcultural e validação para a língua portuguesa do Brasil da Children's Hospital of Philadelphia Infant Test of Neuromuscular Disorders (CHOP INTEND, na sigla em inglês).

Métodos O presente estudo seguiu as etapas de tradução, síntese das traduções, retrotradução, consolidação por comitê de especialistas e teste com 13 pacientes com AME tipo 1. Foi avaliada a validade de conteúdo e a confiabilidade do instrumento.

Resultados A escala foi traduzida considerando os aspectos semânticos, estruturais, idiomáticos e culturais. Todas as taxas de concordância foram > 0,8. O índice de validade de conteúdo geral do instrumento foi de 0,98. A confiabilidade interavaliadores analisada através do coeficiente de correlação intraclasse (ICC, na sigla em inglês) demonstrou um valor de ICC = 0,998.

Conclusão A versão da CHOP INTEND em português atende aos critérios de equivalência semântica e técnica em relação à versão original e apresenta validade de conteúdo e confiabilidade para seu uso na população de pacientes com AME tipo I.

Keywords

Muscular Atrophy, Spinal - Growth and Development - Validation Study

Palavras-chave

Atrofia Muscular Espinal - Crescimento e Desenvolvimento - Estudos de Validação

Authors' Contributions

RMRA: conceptualization, methodology, project administration, data collection, formal analysis, writing-original draft, writing-review and editing; APMC, VVDL, MAFCB: data acquisition, drafting of manuscript, critical review; LBA: conceptualization, methodology, formal analysis, writing-original draft, writing-review and editing. All authors discussed the results and contributed to the final manuscript.




Publication History

Received: 03 December 2022

Accepted: 01 May 2023

Article published online:
04 October 2023

© 2023. Academia Brasileira de Neurologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/)

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