Table 3.

Secondary outcome measures.

Measure	Construct	Number of items	Dimensions	Rating scale	Cutoff points	Psychometric properties	Translation/adaptation to the target populations
Sociodemographic and clinical background questionnaires tailored to each target group	N/Aa	11	N/A	N/A	N/A	N/A	Original version developed in Portuguese (Portugal) by the research team and translated to Dutch and German.
Mini-International Neuropsychiatric Interview (MINI) [52]	Mental disorders	16 modules (branching tree logic items)	Multidimensional	Dichotomous rating scale	N/A	Cohen k=0.7	Translated and adapted to Portuguese (Portugal), Dutch, and German.
Patient Health Questionnaire (PHQ-9) [53]	Depression	9	Unidimensional	4-point Likert scale	Mild depression (<5), moderate depression (6-10), moderately severe depression (11-15), and severe depression (>15)	α=.86	Translated and adapted to Portuguese (Portugal), Dutch, and German.
Generalized Anxiety Disorder Screener (GAD-7) [54]	Anxiety	7	Unidimensional	4-point Likert scale	Normal anxiety (<5), mild anxiety (5-9), moderate anxiety (10-15), and severe anxiety (15-21)	Primary care setting (α=.92); general population (α=.89)	Translated and adapted to Portuguese (Portugal), Dutch, and German.
World Health Organization Quality of Life: Brief Version (WHOQoL-BREF) [55]	Quality of life	26	Multidimensional	5-point Likert scale	N/A	.66<α<.84	Translated and adapted to Portuguese (Portugal), Dutch, and German.
Global Measure of Sexual Satisfaction (GMSEX) [56]	Sexual satisfaction	5	Unidimensional	7-point Likert scale	N/A	α=.94	To be translated and adapted to Dutch and German in the context of this research.
Global Measure of Relationship Satisfaction (GMREL) [56]	Relationship satisfaction	5	Unidimensional	7-point Likert scale	N/A	α=.95	To be translated and adapted to Dutch and German in the context of this research.
Sexual Pleasure Scale (SPS) [57]	Sexual pleasure	3	Unidimensional	7-point Likert scale	N/A	α=.84	To be translated and adapted to Dutch and German in the context of this research.
International Index of Erectile Function (IIEF) [58]	Sexual function	15	Multidimensional	0-5 or 1-5 numeric rating scale	≤25 expresses risk of sexual dysfunction	α>.70 for all domains	Translated and adapted to Portuguese (Portugal), Dutch, and German.
Female Sexual Function Index (FSFI) [59]	Sexual function	19	Multidimensional	0-5 or 1-5 numeric rating scale	≤26 expresses risk of sexual dysfunction	α>.9 for all domains	Translated and adapted to Portuguese (Portugal), Dutch, and German.
Sexual Distress Scale (SDS-R) [60]	Sexual distress	13	Unidimensional	5-point Likert scale	N/A	α>.85	Translated and adapted to Portuguese (Portugal), Dutch, and German.

^aN/A: not applicable.