title: Psychometric differentiation of psychogenic and organic erectile disorders.
abstract: A study was conducted to assess the discriminant validity of patient responses to a questionnaire in distinguishing between organic and psychogenic erectile dysfunction. A total of 56 urologist-referred veterans slept for 3 nights in a sleep laboratory for nocturnal penile tumescence recording. Based on nocturnal penile tumescence results 48 patients were assigned to an organic group and the remaining 8 were assigned to a psychogenic group. A discriminant function analysis of questionnaire responses yielded a highly significant discriminant function [chi-square (19) equals 63.88, p less than 10(-6)], and all 56 patients were classified correctly into the nocturnal penile tumescence-defined organic and psychogenic groups. It was concluded that verbally reported data contain diagnostically meaningful information and that such information can compare favorably with information collected through standard laboratory-based nocturnal penile tumescence techniques.
authors: University of Texas Health Science Center, San Antonio.
authors: J P
authors: JP
authors: Hatch
authors: A M
authors: AM
authors: de la Peña
authors: J G
authors: JG
authors: Fisher
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D007172:Erectile Dysfunction / Q000145:classification / Q000175:diagnosis / Q000523:psychology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010410:Penile Erection; D011602:Psychophysiologic Disorders / Q000175:diagnosis / Q000523:psychology*; D012890:Sleep / Q000502:physiology