Introduction. Sexual dysfunction in patients with severe mental disorders is often underestimated or overlooked by psychiatrists. A brief and valid self-report instrument for assessing sexual functioning may well contribute to changing this situation.
Aims. To validate the Short Form of the Changes in Sexual Functioning Questionnaire (CSFQ-14) in Spanish patients with severe mental disorders.
Methods. Naturalistic, cross-sectional, multicenter, validation study. Eighty-nine patients with schizophrenia and 82 with bipolar disorder were evaluated using the CSFQ-14, the Visual Analogue Scale for Sexual Functioning Satisfaction (VAS-SFS), and the Clinical Global Impression—Severity scales for mental disorders (CGI-S) and for Sexual Dysfunction (CGI-SSD).
Main Outcome Measures. The 14-item Changes in Sexual Functioning Questionnaire.
Results. Internal reliability (Cronbach's alpha) = 0.90. Construct validity = 3 principal components, of which the first, arousal-orgasm, explained 46.4% of the total variance. Convergent validity: Pearson correlation coefficients between CSFQ-14 and VAS-SFS = 0.33 (P < 0.01) and between CSFQ-14 and CGI-SDS = −0.71 (P < 0.01). Discriminant validity: The CSFQ-14 was able to discriminate among patients with no, mild, moderate, and severe sexual dysfunction according to CGI-SDS scores, both in males (P < 0.001) and females (P < 0.001). In males, the area under the curve (AUC) was 0.833 and a cutoff point of 49 provided a sensitivity of 92.9% and a specificity of 59.5%. In females, the AUC was 0.834 and a cutoff point of 43 provided a sensitivity of 91.9% and a specificity of 62.5%.
Conclusion. The Spanish version of the CSFQ-14 is a reliable and valid instrument for assessing sexual functioning in patients with severe mental disorders. As a brief, self-rated instrument, the CSFQ-14 scale seems to be appropriate for use in everyday clinical practice as a means of identifying and monitoring changes in sexual functioning. Garcia-Portilla MP, Saiz PA, Fonseca E, Al-Halabi S, Bobes-Bascaran MT, Arrojo M, Benabarre A, Goikolea JM, Sanchez E, Sarramea F, and Bobes J. Psychometric properties of the Spanish version of the Changes in Sexual Functioning Questionnaire Short-Form (CSFQ-14) in patients with severe mental disorders. J Sex Med 2011;8:1371–1382.