title: The effect of study methodology on reported success rates of the modified Pereyra bladder neck suspension.
abstract: OBJECTIVE
  We compared surgical results in a cohort of women after modified Pereyra bladder neck suspension using questionnaire based outcomes analysis versus a retrospective chart review.
  
  
  METHODS
  Of 151 patients who underwent modified Pereyra bladder neck suspension 102 had complete questionnaire and chart data for review. Mean patient age was 56 years and followup was 25 months.
  
  
  RESULTS
  According to outcomes analysis 48 patients (47.1%) were cured and in 65 (64%) stress urinary incontinence improved compared to 74 (72%) cured and 89 (89%) improved by retrospective review. Of the 102 chart review patients 10 (9%) reported daily pad use compared to 55 of the 102 (53%) in the questionnaire study.
  
  
  CONCLUSIONS
  This study controls for patient selection, definition of cure and length of followup, and demonstrates that study methodology profoundly affects reported outcomes for the modified Pereyra bladder neck suspension.
authors.affiliation: Department of Urology, Henry Ford Hospital, Detroit, Michigan, USA.
authors.forename: L T
authors.initials: LT
authors.lastname: Sirls
authors.forename: C M
authors.initials: CM
authors.lastname: Keoleian
authors.forename: H J
authors.initials: HJ
authors.lastname: Korman
authors.forename: A K
authors.initials: AK
authors.lastname: Kirkemo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D012074:Remission Induction; D013514:Surgical Procedures, Operative / Q000379:methods; D011795:Surveys and Questionnaires; D001743:Urinary Bladder / Q000601:surgery; D014550:Urinary Incontinence, Stress / Q000601:surgery*