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CC BY 4.0 · Rev Bras Ginecol Obstet 2023; 45(10): e575-e583
DOI: 10.1055/s-0043-1772591
Original Article
Pelvic Pain/Quality of Life

Adaptation and Validation of the International Pelvic Pain Society's Quality of Life Questionnaire in Portuguese

Adaptação e validação do questionário de qualidade de vida da International Pelvic Pain Society em português
Letícia Ferracini Lenharo Hayashi 
1   Department of Obstetrics and Gynecology, Faculdade de Medicina de Catanduva, Catanduva, SP, Brazil.
,
Paulo Augusto Ayroza Galvão Ribeiro 
2   Faculty of Medical Sciences, Santa Casa de São Paulo, São Paulo, SP, Brazil.
,
Júlio Cesar Rosa e Silva 
3   Department of Gynecology and Obstetrics, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
,
Luiz Gustavo Oliveira Brito 
4   Department of Obstetrics and Gynecology, Faculdade de Ciências Médicas, Universidade de Campinas, Campinas, SP, Brazil.
,
Helizabet Salomão Abdalla Ayroza Ribeiro 
2   Faculty of Medical Sciences, Santa Casa de São Paulo, São Paulo, SP, Brazil.
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Abstract

Objective In the present study, our aim was to translate, adapt, and validate the Pelvic Health History Form (a quality of life [QoL] questionnaire) of the International Pelvic Pain Society (IPPS) from English to Portuguese.

Methods The study was approved by the Ethics and Research Committee (CEP, in the Portuguese acronym) and the IPPS. The "Transcultural Adaptation" method comprised 5 stages: translation, synthesis, backtranslation, expert review, and pretest. Cultural adaptation and validation included cognitive interviews and statistical analysis of unanswered items (> 15%) in 14 clinic patients from CPP and endometriosis clinic at Santa Casa de São Paulo.

Results Strong equivalences were established between the USA and Brazil questionnaires in terms of semantics, idioms, experiences, and concepts. Eighteen culturally inappropriate items were identified and adjusted using the revised response rate index. The subjective form underwent rigorous assessments, confirming its accurate measurement of intended targets.

Conclusion The methodology showed efficiency and equivalence, confirming its validity. The user-friendly format and inclusion of translated, adapted, and validated instruments in Portuguese make the form valuable for evaluating pelvic health, with potential for future research.

Resumo

Objetivo Realizar a tradução, adaptação e validação do questionário de qualidade de vida Pelvic Health History Form da International Pelvic Pain Society (IPPS, na sigla em inglês) para a língua portuguesa.

Métodos Aprovação do Comitê de Ética e Pesquisa (CEP) e consentimento do IPPS. A metodologia “Adaptação Transcultural” foi utilizada em cinco etapas: (I) tradução; (II) síntese; (III) retradução; (IV) revisão pelo comitê de especialistas; (V) pré-teste, seguido de adaptação cultural e validação por meio de entrevista cognitiva e análise estatística da taxa de ausência de respostas > 15% após aplicação do instrumento em 14 pacientes do ambulatório de DPC e endometriose da Santa Casa de São Paulo.

Resultados Equivalências semântica, idiomática, experiencial e conceitual entre o questionário de país fonte (EUA) e alvo (Brasil) foram bem estabelecidas. Dezoito itens culturalmente impróprios, de acordo com o índice de ausência de respostas revisados, adaptados e realizada validade de face e de constructo, avaliando forma subjetiva, confiável que o instrumento mede o que pretende medir.

Conclusão A metodologia utilizada foi eficiente, com boa equivalência com o material de origem concluindo a sua validade. Formulário de formato simples, fácil aplicação e compreensão, composto por diversos instrumentos já traduzidos, adaptados e validados em nossa língua. O formulário auxilia avaliação multidimensional da saúde pélvica destas pacientes e poderá ser utilizado em estudos futuros.

Keywords

surveys and questionnaires - quality of life - translation - validation study - pelvic pain - chronic pain

Palavras-chave

inquéritos e questionários - qualidade de vida - tradução - estudo de validação - dor pélvica - dor crônica

Contributions

All authors contributed with the project and data interpretation, the writing of the article, the critical review of the intellectual content, and with the final approval of the version to be published.


Supplementary Material



Publication History

Received: 01 March 2023

Accepted: 16 June 2023

Article published online:
09 November 2023

© 2023. Federação Brasileira de Ginecologia e Obstetrícia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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