Brazilian version of the Brief Male Sexual Function Inventory (BSFI) in adult men: cultural adaptation and measurement properties.

BACKGROUND

There is a need for a more comprehensive tool for assessing male sexual function that is inclusive of diverse gender identities and sexual orientations.

AIM

Culturally adapt the Brazilian version of the Brief male Sexual Function Inventory (BSFI) and evaluate its measurement properties in adult men.

METHODS

We conducted an online survey with 727 Brazilian men over 18 years of age (31.73 ± 10.88 years). According to COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN), we translated and evaluated the content validity, structural validity, internal consistency, construct validity, test-retest reliability, measurement error, and minimum and maximum effects of the BSFI.

OUTCOMES

The final Brazilian version of the BSFI consisted of 10 items and was found to be relevant, comprehensive, and comprehensible.

RESULTS

Although it showed good content validity and reliability, the BSFI showed inadequate structural validity and insufficient internal consistency for at least one factor.

CLINICAL IMPLICATIONS

The Brazilian version of the BSFI can be used in adult males in community samples, pending evaluation in clinical samples.

STRENGTHS AND LIMITATIONS

The sampling bias associated with online recruitment may have excluded individuals without access to the Internet, thereby compromising the representativeness of the sample. This may limit generalizability. However, COSMIN guidelines were followed to ensure methodological rigor. The BSFI adaptation provides a Patient-Reported Outcome Measure for assessing male sexual function, but has limitations in structural validity and internal consistency.

CONCLUSION

The Brazilian version of the BSFI showed sufficient validity (content validity and hypothesis testing for construct validity) in adult men and sufficient test-retest reliability.