Development and Validation of a Scale for Assessing the Interference of Chronic Primary Pain Conditions in Sexual Functioning: The Sex-Pain Questionnaire.

Chronic pain represents one of the main health public problems worldwide and significantly affects the sexual life of patients. However, no specific instruments of evaluation have been found that address this population. This study presents the SEX-PAIN Questionnaire, developed for identifying chronic pain's interference with sexual functioning among people with chronic pain. Methods. The validation has been carried out with a sample of 303 Spanish non-hospitalized patients with chronic pain diagnosis aged between 20 and 71 years old (Mage = 49.49; SD = 10.7). Exploratory Factor Analysis (EFA) yielded 2-factor structure: Sexual and Relationship Dissatisfaction, and Chronic Pain Impact on Sexual Life. This structure was later verified through Confirmatory Factor Analysis (CFA). Internal consistency (Omega) of each factor was .72 and .96, respectively. This study presents the psychometric properties of a new measure addressed to patients with chronic pain. This 17-items self-administered instrument can be a useful measure of the chronic pain's interference with sexual functioning among chronic pain patients. It represents the first original questionnaire known in Spanish language to date. This measure could potentially help researchers and clinicians to obtain key information to design appropriate healthcare interventions.Supplemental data for this article is available online at https://doi.org/10.1080/0092623X.2022.2039336 .