Aims:We assessed the utility of three self-assessment instruments: the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF), the post-operative Patient Global Impression of Improvement (PGI-I) score, and the International Prostate Symptom Score (IPSS) by correlating them with an objective outcome, the change in 24-hr pad weight, after a male perineal sling. Methods: Twenty-six men with urodynamically con¢rmed stress incontinence underwent a male perineal sling. Patients were evaluated pre-operatively and post-operatively with a 24-hr pad test, IPSS and ICIQ-SF. Patients also completed the PGI-I post-operatively. Changes in study parameters were compared via the paired t-test, and correlations were performed using Spearman's rho. Results: There were signi¢cant reductions in 24-hr pad weight (À274 g, P < 0.001), percentage 24-hr pad weight (54.2%), ICIQ-SF score (À6.3, P < 0.001), and the three ICIQ-SF subscores (À1.2, À1.7, À3.4 for Questions 3, 4, and 5, respectively, P < 0.001 for all). The change in total ICIQ-SF score and the post-operative PGI-I score correlated strongly with percentage reduction in 24-hr pad weight (r ¼ À0.68, P < 0.001; r ¼ À0.81, P < 0.001, respectively) and with each other (r ¼ 0.79, P < 0.001). The change in all three ICIQ-SF subscores correlated signi¢cantly with percentage reduction in 24-hr pad weight and with post-operative PGI-I score. There was no signi¢cant change in the IPSS or the voiding or storage subscores, and none correlated with any other study parameter. Conclusions: This study validates the construct validity of the ICIQ-SF and PGI-I in the assessment of treatment for male stress incontinence and should make clinicians con¢dent in comparing studies of incontinence treatment utilizing the change ICIQ-SF score, the post-operative PGI-I score, and percentage reduction in 24-hr pad weight as outcome measures.