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Female Sexual Function Index Short Version: A MsFLASH Item Response Analysis.

Janet S Carpenter^1,2, Salene M W Jones³, Christina R Studts⁴

¹Department of Science of Nursing Care, School of Nursing, Indiana University, Indianapolis, IN, USA. carpentj@iu.edu.

Archives of Sexual Behavior

|August 10, 2016

Summary

This summary is machine-generated.

A new 9-item Female Sexual Function Index (FSFI) offers a shorter, valid measure for sexual function in menopausal women. This scale provides comprehensive insights, especially when sexual health is a secondary study outcome.

Keywords:

Female Sexual Function Index Menopause Psychometrics

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Area of Science:

Reproductive Medicine
Psychometrics
Women's Health

Background:

The 19-item Female Sexual Function Index (FSFI) is a widely used tool but its length can be burdensome in studies where sexual function is not the primary focus.
Existing shorter versions, like the Italian FSFI-6, lack extensive psychometric validation in diverse populations.

Purpose of the Study:

To develop and validate a shorter, psychometrically sound version of the English-language FSFI for use in peri- and postmenopausal women.
To compare the performance of the new shorter FSFI version against the existing FSFI-6.

Main Methods:

Utilized baseline data from 898 peri- and postmenopausal women (ages 42-62) participating in vasomotor symptom management trials.
Developed a 9-item FSFI scale from the original 19-item version, focusing on retaining key psychometric properties.
Compared the psychometric performance of the 9-item FSFI to the FSFI-6.

Main Results:

The 9-item FSFI demonstrated superior information yield compared to the FSFI-6 across the spectrum of sexual functioning.
The 9-item scale effectively captured sample variability without significant floor or ceiling effects.
Most items from the FSFI-6 were incorporated into the 9-item version, with omitted items primarily related to frequency.

Conclusions:

A 9-item FSFI is a psychometrically sound and efficient measure for assessing sexual function in English-speaking peri- and postmenopausal women.
This shorter version is particularly valuable for studies where sexual function is a secondary endpoint and minimizing subject burden is crucial.