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The Brazilian Portuguese version of the ICIQ-OABqol: cross-cultural adaptation and reliability

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Abstract

Introduction and hypothesis

The International Consultation on Incontinence Questionnaire Overactive Bladder Symptoms Quality of Life (ICIQ-OABqol) Module evaluates the quality of life of individuals with overactive bladder (OAB) symptoms, and its use in scientific studies and clinical practice is recommended by the International Continence Society. The aim was to conduct the cross-cultural adaptation and validation of the Brazilian Portuguese version of the ICIQ-OABqol (ICIQ-OABqol_portuguese) in individuals with OAB symptoms.

Methods

An observational cross-sectional study was performed at the Clinical Physiotherapy of PUC MINAS in Belo Horizonte, MG, Brazil, between March 2017 and October 2018. The translation was previously carried out by the Mapi Research Institute. After receiving the translated questionnaire, the cross-cultural adaptation process was conducted as follows: (1) review by an expert committee (13 experts); (2) pre-test (n = 30); (3) cross-cultural adaptation; (4) validation of the ICIQ-OABqol_portuguese. We analyzed the intraexaminer reliability validation (n = 118) and internal consistency measurement (Cronbach’s α coefficient), test-retest reliability (ICC) and correlation between the ICIQ-OAB and ICIQ-OABqol_portuguese questionnaires through Pearson’s correlation coefficient and Bland-Altman scatter plot and concordance. Confirmatory factor analysis was used to confirm the domains of the instrument.

Results

The ICIQ-OABqol was cross-culturally adapted to Brazilian Portuguese and presented satisfactory internal consistency (α-Cronbach coefficient 0.88), adequate construct validity, strong reliability considering the test-retest with an interval of 19.68 (±6.98) days and moderate correlation with the ICIQ-OAB.

Conclusions

The Brazilian Portuguese version of the ICIQ-OABqol shows satisfactory psychometric properties and can be used to evaluate the quality of life of individuals of both sexes with OAB symptoms.

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Abbreviations

CP:

Concordance percentage

CFA:

Confirmatory factor analysis

CVI:

Content validity index

ICIQ-OABqol:

International Consultation on Incontinence Questionnaire Overactive Bladder Symptoms Quality of Life Module

ICIQ-OAB:

International Consultation on Incontinence Questionnaire Overactive Bladder Symptoms

ICS:

International Continence Society

ICC:

Intraclass correlation coefficient

KMO:

Kaiser-Meyer-Olkin

PRO:

Patient-reported outcomes

OAB:

Overactive bladder

PUC MINAS:

Pontifical Catholic University of Minas Gerais

UNICAMP:

State University of Campinas

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Acknowledgments

We thank the honorary professors of the Pontifical Catholic University of Minas Gerais (PUC Minas), Patrícia Dayrell and Daniel Câmara Azevedo, for the critical review of the manuscript. We also thank the research subjects, institutions involved and International Consultation on Incontinence Questionnaire (http://iciq.net/) for all their support for this study.

Funding

The present study was carried out with support from Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-Financing Code 001, through the State University of Campinas (UNICAMP), as well as support from the Federal University of Alfenas (UNIFAL-MG) and Pontifical Catholic University of Minas Gerais (PUC MINAS).

This study was financed in part by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-Finance Code 001, through the Postgraduate Program in Surgical Science of the State University of Campinas (UNICAMP), with support from the Federal University of Alfenas-UNIFAL-MG, Fundação de Amparo à Pesquisa do Estado de Minas Gerais-FAPEMIG (PPM-00471-18) and the Pontifical Catholic University of Minas Gerais-PUC MINAS - Brazil.

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Authors

Contributions

• Sílvia Monteiro: Project development, data management, manuscript writing/editing.

• Cássio Riccetto: Project development, manuscript writing/editing.

• Anna Karoline Rocha: Data collection and data analysis.

• Kamila Santos: Data collection and data analysis.

• Ingrid Campos: Data collection and data analysis.

• Tuany Pereira: Data collection and data analysis.

• Simone Botelho: Project development, manuscript writing/editing.

Corresponding author

Correspondence to Simone Botelho.

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Monteiro, S., Riccetto, C., Rocha, A.K. et al. The Brazilian Portuguese version of the ICIQ-OABqol: cross-cultural adaptation and reliability. Int Urogynecol J 31, 2507–2514 (2020). https://doi.org/10.1007/s00192-020-04280-x

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