No= 0, Not at all= I, Somewhat= 2, Moderately= 3, Quite a bit= 4
Add all scores and multiply by 6 then multiply by 25 for the scale score
Missing items are dealt with by using the mean from the answered items only
Higher score = higher disability
Also see scoring of PFDI-20.
Uebersax JS, Wyman JF, Shumaker SA. McClish DK, Fantl AJ. Short forms to assess life quality and symptom distress for urinary incontinence in women: the incontinence impact questionnaire and the urogenital distress inventory. Neurourol and Urodynam 1995;14:131-139.
Grade A rating for symptoms of UI for women
Donavan J. et al Symptom and quality of life assessment. In Incontinence vol I Basics and Evaluation eds Abrams P, Cardozo L, Khoury S, Wein A. Health Publications Ltd Paris France 2005.