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 < or = 2 minutes in > or = 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 > or = 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.
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 < or = 2 minutes in > or = 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 > or = 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.
Authors: Crystal S Denlinger; Tara Sanft; K Scott Baker; Shrujal Baxi; Gregory Broderick; Wendy Demark-Wahnefried; Debra L Friedman; Mindy Goldman; Melissa Hudson; Nazanin Khakpour; Allison King; Divya Koura; Elizabeth Kvale; Robin M Lally; Terry S Langbaum; Michelle Melisko; Jose G Montoya; Kathi Mooney; Javid J Moslehi; Tracey O'Connor; Linda Overholser; Electra D Paskett; Jeffrey Peppercorn; M Alma Rodriguez; Kathryn J Ruddy; Paula Silverman; Sophia Smith; Karen L Syrjala; Amye Tevaarwerk; Susan G Urba; Mark T Wakabayashi; Phyllis Zee; Deborah A Freedman-Cass; Nicole R McMillian Journal: J Natl Compr Canc Netw Date: 2017-09 Impact factor: 11.908
Authors: W K B A Owiredu; H Alidu; N Amidu; C Obirikorang; C K Gyasi-Sarpong; A T Bawah; P P M Dapare; A T Luuse Journal: Int J Impot Res Date: 2017-08-17 Impact factor: 2.896
Authors: B R Simon Rosser; Benjamin Capistrant; Maria Beatriz Torres; Badrinath Konety; Enyinnaya Merengwa; Darryl Mitteldorf; William West Journal: Sex Relation Ther Date: 2016-08-29
Authors: John N Krieger; Supriya D Mehta; Robert C Bailey; Kawango Agot; Jeckoniah O Ndinya-Achola; Corette Parker; Stephen Moses Journal: J Sex Med Date: 2008-08-28 Impact factor: 3.802
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