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  • Title: Test-retest reliability of four questionnaires for patients with overactive bladder: the overactive bladder questionnaire (OAB-q), patient perception of bladder condition (PPBC), urgency questionnaire (UQ), and the primary OAB symptom questionnaire (POSQ).
    Author: Matza LS, Thompson CL, Krasnow J, Brewster-Jordan J, Zyczynski T, Coyne KS.
    Journal: Neurourol Urodyn; 2005; 24(3):215-25. PubMed ID: 15747340.
    Abstract:
    AIMS: This study examined test-retest reliability of four patient-reported outcome measures for patients with overactive bladder (OAB): Overactive Bladder Questionnaire (OAB-q), Patient Perception of Bladder Condition (PPBC), Urgency Questionnaire (UQ), and Primary OAB Symptom Questionnaire (POSQ). METHODS: Patients recruited from urology clinics were scheduled for two visits 2 weeks apart and completed all questionnaires at both visits. A demographic form was completed at Visit 1; and a treatment effect scale was completed at Visit 2. Test-retest reliability was examined among stable patients using intraclass correlations (ICC), Spearman's correlations, paired t-tests, Feldt's statistic, and kappas. RESULTS: A total of 47 patients enrolled (mean age = 66.0 years, 74.5% female), with 46 completing both visits; 35 were classified stable. Statistically significant correlations were present between Visits 1 and 2 (P < 0.05) for all subscales of the OAB-q, UQ, and POSQ. Subscale ICCs were moderate to high (OAB-q > or = 0.83, UQ > or = 0.46, POSQ continuous items > or = 0.68). No significant differences between Visit 1 and 2 were noted, except for the OAB-q symptom bother scale (change of 5.8 points on a 100-point scale). The multi-item subscales of the OAB-q and the UQ demonstrated good internal consistency (Cronbach's alpha > or = 0.83 for all subscales) across both visits. Test-retest reliability of the PPBC was somewhat weaker than the other three measures, but still acceptable for use as a global, single-item outcome measure. CONCLUSIONS: The OAB-q, POSQ, and UQ demonstrated good test-retest reliability, with ICCs roughly equivalent or superior to those previously reported for 7-day micturition diaries. Findings suggest that the four measures examined in this study demonstrate the necessary reproducibility for use as outcome measures for OAB treatments.
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