Propriedades psicométricas da versão brasileira do Female Sexual Function Index em mulheres com câncer de mama

Iarlla Silva Ferreira Vaz; Denise Montenegro da Silva; Ana Fátima Carvalho Fernandes; Régia Christina Moura Barbosa Castro; Andrea Bezerra Rodrigues; Manuela de Mendonça Figueirêdo Coelho

doi:10.15253/2175-6783.20242594008

Authors

Iarlla Silva Ferreira Vaz Hospital e Maternidade Araken Irerê Pinto https://orcid.org/0000-0003-3792-5624
Denise Montenegro da Silva Universidade Federal do Ceará https://orcid.org/0000-0001-6969-4133
Ana Fátima Carvalho Fernandes Universidade Federal do Ceará https://orcid.org/0000-0001-5110-6364
Régia Christina Moura Barbosa Castro Universidade Federal do Ceará https://orcid.org/0000-0002-0673-9442
Andrea Bezerra Rodrigues Universidade Federal do Ceará https://orcid.org/0000-0002-2137-0663
Manuela de Mendonça Figueirêdo Coelho Universidade Federal do Ceará https://orcid.org/0000-0001-6182-9486

DOI:

https://doi.org/10.15253/2175-6783.20242594008

Keywords:

Validation Study; Factor Analysis, Statistical; Breast Neoplasms; Sexuality.

Abstract

Objective: to evaluate the measurement properties of the Female Sexual Function Index – Brazilian version in women with breast cancer. Methods: this methodological study involved 246 patients treated at two specialized breast cancer outpatient clinics. Data were collected using two instruments: a sociodemographic and clinical characterization questionnaire and the Brazilian version of the FSFI. Construct validity was assessed through confirmatory factor analysis, and reliability was evaluated using composite reliability. Results: in the factor analysis, the model achieved satisfactory results with acceptable fit indices (p=0.270; χ²/df=1.070; Comparative Fit Index=0.999; Tucker-Lewis Index=0.999; Standardized Root Mean Residual=0.061; Root Mean Square Error of Approximation=0.019). Evidence of reliability was also confirmed (composite reliability: 0.980). Conclusion: the instrument demonstrated satisfactory validity and reliability for assessing sexual function in women with breast cancer. Contributions to practice: this study provides methodological support for using this tool to assist in the nursing diagnosis of "Sexual dysfunction" in women with breast cancer.

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