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The results provide initial indications of the effectiveness of a group intervention based on the principles of compassionate focused therapy for this population. The findings of this study, alongside implications of further research are discussed.

Introduction No validated questionnaires to assess the subjective aspects of premature ejaculation (PE) are currently in use. Clinical trials have generally only considered time, measured by ejaculatory latency, as an indicator of efficacy, but ejaculatory control, sexual satisfaction, and distress are important aspects of PE, which impact both the patient and his partner. The objective of this study was to develop and validate a new questionnaire to measure the overall experience of PE. Methods The questionnaire was developed using four stages: item pool development, initial psychometric analyses, patient interviews, and final psychometric analyses. Results An item pool of 17 was generated and reduced to 10 items through the initial psychometric analyses. Patient interviews did not require addition of further items and resulted in only minor modifications to item wording for clarity. Final psychometric analyses of the 10-item measure confirmed a three-factor solution: sexual satisfaction, control, and distress. Reliability was good, both internal consistency and test–retest reliability. Convergent validity using intravaginal ejaculatory latency time was excellent: control domain (0.75), sexual satisfaction domain (0.60), and distress domain (0.68). Known-groups validity was very good, all domain mean scores being statistically significantly worse in men with PE compared with the men reporting no PE problems. Conclusion The Index of Premature Ejaculation is a reliable and valid questionnaire for the assessment of control over ejaculation, satisfaction with sex life, and distress in men with PE. This tool has the potential to add value to interpretations of improvements in ejaculation latency resulting from new treatments of PE.

Introduction An instrument that can systematically capture the impact of sexual dysfunction on quality of life (QoL) in men is needed. Aims To psychometrically validate a sexual QoL instrument for men (SQOL-M) with premature ejaculation (PE) or erectile dysfunction (ED). Methods The main assessment populations were men participating in clinical trials of treatments for PE or ED. Men with PE had a confirmed intravaginal ejaculatory latency time of ≤2 minutes in ≥70% of attempts. Men with ED had a score of >21 on the International Index of Erectile Function (IIEF). Confirmatory psychometric testing was conducted in further groups of men with PE. Main Outcome Measures The internal consistency, convergent and discriminant validity, test–retest reliability, and known-groups validity of the instrument were assessed. Results An 11-item version of the SQOL-M was produced following factor analyses on men with either PE or ED. Psychometric testing showed no overlap between items and good item-total correlations. Factor analysis confirmed a one-factor solution. Excellent internal consistency was demonstrated, with a Cronbach's alpha of ≥0.82 in all groups. In men reporting no change in their symptoms, the SQOL-M showed excellent test–retest reliability: the intraclass correlation coefficient was 0.77 for men with PE, and 0.79 for men with ED. Convergent validity was also good. In men with PE, the SQOL-M correlated with the satisfaction and distress domains of the Index of Premature Ejaculation. In men with ED, the SQOL-M correlated with the overall satisfaction domain of the IIEF. The measure also demonstrated excellent discriminant validity between men with PE or ED and men with no sexual dysfunction (P <0.0001). Conclusions The SQOL-M instrument is a useful tool for evaluating sexual QoL in men with PE and ED.