title: ['Leiden Impotence Screening Test'(LIST) in men with erectile dysfunction as a pre-selective method prior to psychophysiological diagnostic tests].
abstract: OBJECTIVE
  To compare, in men with erectile dysfunction, the diagnosis obtained with the 'Leiden impotence questionnaire' (LIQ)--which differentiates between psychogenic and organic erectile dysfunction--with the clinical diagnosis based on psychophysiological diagnostic screening (PDS).
  
  
  METHODS
  Exploratory, comparative, and prospective.
  
  
  METHODS
  The LIQ-questionnaire was administered to 320 consecutive patients with erectile dysfunction who underwent PDS (i.e. visual sexual stimulation and penile vibration) in the Department of Endocrinology and Reproduction, Erasmus University Medical Centre, Rotterdam, the Netherlands. The clinical diagnosis was based on PDS and later, retrospectively, compared to the LIQ-based diagnosis (only the first six of the 11 LIQ-questions were answered by all patients).
  
  
  RESULTS
  The clinical diagnosis, psychogenic or somatic, corresponded well with the LIQ-diagnosis. Following PDS an organic aetiology was assumed in 30% of the patients; compared to 33% according to the LIQ. For a psychogenic aetiology the figures were 70% and 67% respectively. Overall there was a 74% correspondence between PDS-diagnosis and the LIQ-diagnosis. Age was a significant factor: younger men (< 40 years) had the highest LIQ-score (compared to men aged 40-60 and > 60 years) and the strongest penile responses. This is indicative of a more frequent psychogenic aetiology of the erectile dysfunction in younger men.
  
  
  CONCLUSIONS
  Elaborate psychophysiological diagnostic screening is not necessarily the first diagnostic choice in men with erectile dysfunction; one may start by applying the LIQ. A high LIQ-score (5-7) virtually excludes a somatic aetiology. A low LIQ-score (0-2) necessitates further psychosomatic diagnostic screening, preferably with PDS.
authors: Afd. Endocrinologie en Voortplanting, Erasmus Universitair Medisch Centrum Rotterdam, Postbus 1738, 3000 DR Rotterdam.
authors: A K
authors: AK
authors: Slob
authors: E F
authors: EF
authors: Buitenhuis
authors: L
authors: L
authors: Gijs
authors: W C
authors: WC
authors: Hop
mesh_terms: D000328:Adult; D000367:Age Factors; D003937:Diagnosis, Differential; D007172:Erectile Dysfunction / Q000175:diagnosis* / Q000523:psychology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009426:Netherlands; D011237:Predictive Value of Tests; D011446:Prospective Studies; D020018:Sexual Dysfunctions, Psychological / Q000175:diagnosis*; D011795:Surveys and Questionnaires / Q000592:standards*