Abstract
OBJECTIVE: To determine how well a single question of self-reported erectile dysfunction compares to a gold standard clinical urologic examination.
DESIGN AND SETTING: Clinical validation study nested within the Massachusetts Male Aging Study (MMAS), which is an observational cohort study of aging and health in a population-based random sample of men.
MEASUREMENT: During an in-person interview, men were asked to respond to a single-question self-report of erectile dysfunction. A subsample of MMAS participants was then subjected to a clinical urologic examination to obtain a clinical diagnosis of erectile dysfunction.
PARTICIPANTS: One hundred thirty-nine men 55 to 85 years of age from the MMAS.
RESULTS: Complete data were available from 137 men. Erectile dysfunction (ED) measured by self-report and independent urologic examination were strongly correlated (Spearman r=.80). Receiver operating curve analysis showed that the self-reported ED item accurately predicts the clinician-diagnosed ED (area under the curve [AUC]=0.888). Stratum-specific likelihood ratios (95% confidence intervals) for self-reports predicting the gold standard were: no ED=0.11 (0.06 to 0.22), minimal ED=1.48 (0.67 to 3.26), moderate ED=8.57 (1.21 to 60.65), and complete ED=12.69 (1.81 to 88.79). These data indicate that men diagnosed with ED by urologic examination can be distinguished from men not diagnosed with ED by urologic examination if the respondent self-reported no, moderate, or complete ED.
CONCLUSION: Our single-question self-report accurately identifies men with clinically diagnosed ED, and may be useful as a referral screening tool in both research studies and general practice settings.
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There are no conflicts of interest for any of the authors except IG who is a consultant for Pfizer, Bayer, Glaxo-Smith Klein, ICOS, Eli Lilly, AMS, and Mentor.
Information was presented at the American Urology Association annual meeting, San Francisco, CA, May 2004, and Society of Epidemiologic Research annual meeting, Salt Lake City, UT, June 2004.
This work was supported by the National Institute of Diabetes and Digestive and Kidney Disorders (grant DK44995).
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O’Donnell, A.B., Araujo, A.B., Goldstein, I. et al. The validity of a single-question self-report of erectile dysfunction. J GEN INTERN MED 20, 515–519 (2005). https://doi.org/10.1111/j.1525-1497.2005.0076.x
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DOI: https://doi.org/10.1111/j.1525-1497.2005.0076.x