Barbara Shorter1, Meredith Ackerman2, Michael Varvara3, Robert M Moldwin3. 1. Department of Nutrition, Long Island University Post, Brookville, New York; Department of Urology, Smith Institute for Urology, New Hyde Park, New York. Electronic address: Bshorter@liu.edu. 2. Biostatistics Unit, Feinstein Institute for Medical Research, North Shore-Long Island Jewish Health System, Manhasset, New York. 3. Department of Urology, Smith Institute for Urology, New Hyde Park, New York.
Abstract
PURPOSE: American Urological Association guidelines suggest dietary changes as first line treatment for interstitial cystitis/bladder pain syndrome. We previously developed a validated survey instrument to determine which foods, beverages and supplements exacerbate the symptoms of this condition. In this study we developed a shortened questionnaire that would provide an easily self-administered food symptom history useful for clinical practice and future research. MATERIALS AND METHODS: Using data from our previously validated food sensitivity questionnaire we remodeled the original lengthy survey to an abbreviated list including the 35 most problematic comestibles. The instrument was reviewed by a panel of experts for face and content validity, and tested for internal consistency, readability and clarity, and test-retest reliability. RESULTS: Of the 124 patients who completed a baseline questionnaire 52 (42%) returned the second instrument 1 week after completing the first instrument. Internal consistency was high (α=0.96). A total of 47 patients (90.4%) indicated that they were food sensitive. Questionnaire test-retest reliability assessed by the Spearman correlation coefficient ranged from moderate (ρ=0.48 for Equal®) to very strong (ρ=0.90 for beer). Discrepancies between the survey instruments in individual comestibles occurred only 1% of the time. CONCLUSIONS: Our short form diet history questionnaire based on a previously validated long form is a reliable, newly validated instrument that will help identify comestibles associated with interstitial cystitis/bladder pain syndrome symptoms. Its brevity makes it simple to administer and useful for dietary management in this population.
PURPOSE: American Urological Association guidelines suggest dietary changes as first line treatment for interstitial cystitis/bladder pain syndrome. We previously developed a validated survey instrument to determine which foods, beverages and supplements exacerbate the symptoms of this condition. In this study we developed a shortened questionnaire that would provide an easily self-administered food symptom history useful for clinical practice and future research. MATERIALS AND METHODS: Using data from our previously validated food sensitivity questionnaire we remodeled the original lengthy survey to an abbreviated list including the 35 most problematic comestibles. The instrument was reviewed by a panel of experts for face and content validity, and tested for internal consistency, readability and clarity, and test-retest reliability. RESULTS: Of the 124 patients who completed a baseline questionnaire 52 (42%) returned the second instrument 1 week after completing the first instrument. Internal consistency was high (α=0.96). A total of 47 patients (90.4%) indicated that they were food sensitive. Questionnaire test-retest reliability assessed by the Spearman correlation coefficient ranged from moderate (ρ=0.48 for Equal®) to very strong (ρ=0.90 for beer). Discrepancies between the survey instruments in individual comestibles occurred only 1% of the time. CONCLUSIONS: Our short form diet history questionnaire based on a previously validated long form is a reliable, newly validated instrument that will help identify comestibles associated with interstitial cystitis/bladder pain syndrome symptoms. Its brevity makes it simple to administer and useful for dietary management in this population.
Authors: Tamara G Bavendam; Jenna M Norton; Ziya Kirkali; Chris Mullins; John W Kusek; Robert A Star; Griffin P Rodgers Journal: J Urol Date: 2016-06-21 Impact factor: 7.450
Authors: T Bschleipfer; R Doggweiler; D Schultz-Lampel; J de Jong; A Gonsior; J Hensen; E Heßdörfer; B T Kaftan; A Kuhn; U Kunzendorf; A Lampel; A Landmesser; A Loch; O Moormann; B Müller; J Neuhaus; A Reich; R Roth; S Schumacher; R Stratmeyer; W Vahlensieck; A Wördehoff; B Münder-Hensen Journal: Urologe A Date: 2019-11 Impact factor: 0.639