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Validation and Cross-cultural Adaptation of the (MSISQ-15) into Spanish

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Journal PeerJ
Date 2023 May 4
PMID 37138819
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Abstract

Background: The Multiple Sclerosis Intimacy and Sexuality Questionnaire-15 (MSISQ-15) is a valid and reliable tool to assess the sexuality of people with multiple sclerosis. The objectives of this study were: 1) to cross-culturally adapt and examine the psychometric properties of the MSISQ-15 in the Spanish context and 2) to examine the association between sexual dysfunction and other related factors.

Methods: We conducted a instrumental study. People diagnosed with multiple sclerosis and members of multiple sclerosis associations in Spain were included. The linguistic adaptation of the questionnaire was performed through a translation-back translation procedure. For the psychometric validation, the confirmatory factor analysis was used while the internal consistency was examined by the ordinal alpha test. The construct validity was examined by correlating the results with the Male Sexual Function (FSH), Female Sexual Function-2 (FSM-2), Dyadic Adjustment Scale-13 (EAD-13) and Multiple Sclerosis International Quality of Life Questionnaire (MusiQoL) questionnaires.

Results: A total of 208 participants were included. Both the fit of the Spanish version of the MSISQ-15 to the original scale and the internal consistency were adequate ( = 0.89). The construct validity showed correlations with the FSH, FSM-2, and MusiQoL but not with the EAD-13.

Conclusions: The Spanish version of the MSISQ-15 is a valid and reliable tool to assess the sexuality of people with multiple sclerosis in the Spanish context.

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