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Evaluation of a Swedish version of the Watts Sexual Function Questionnaire (WSFQ) in persons with heart disease: a
Marja-Leena Kristofferzon1, Ingela Johansson, Margareta Brännström
1Department of Caring Science and Sociology, University of Gävle, SE-801 76 Gävle, Sweden. mko@hig.se
Background:
As part of preparation for a Swedish multicentre study, exploring sexual and married life in patients with myocardial infarction and their partners, a Swedish validated instrument was required.
Aims:
The aim of this pilot study was to evaluate the validity and reliability of a Swedish version of the Watts Sexual Function Questionnaire (WSFQ) among persons with a heart disease.
Methods:
A convenience sample of 79 persons (47 men and 32 women) living with a heart disease was recruited from the members of the National Association of Heart and Lung Patients. They completed a Swedish version of the WSFQ on two occasions.
Results:
Two separate factor analyses each revealed a two-factor structure on both occasions: "Sexual appetite" and "Sexual expectations" with gender-neutral questions and "Sexual sensitiveness" and "Sexual ability" with gender-specific questions. Cronbach's alpha coefficients ranged from 0.48 to 0.86 and test-retest values for all but one question exceeded 0.70.
Conclusions:
The Swedish version of the WSFQ showed good validity and stability and acceptable internal homogeneity. Extended evaluations of the questionnaire are recommended.
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