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Validation of overactive bladder questionnaire (1-week recall version) in medically complex elderly patients with
Alexandra I Barsdorf1, Martin Carlsson2, Andrew G Bushmakin3
1Outcomes & Evidence, Global Health & Value Pfizer Inc, 235 East 42nd Street, New York, NY, 10017, USA. Alexandra.Barsdorf@pfizer.com.
International Urogynecology Journal
|April 6, 2017
Summary
The Overactive Bladder questionnaire (OAB-q) is reliable and valid for assessing symptoms in elderly patients with complex medical conditions. This study confirms its psychometric soundness for this population.
Area of Science:
- Gerontology
- Urology
- Psychometrics
Background:
- The Overactive Bladder questionnaire (OAB-q) is a validated tool for middle-aged individuals.
- Its utility in medically complex elderly populations requires further investigation.
Purpose of the Study:
- To determine the psychometric validity of the OAB-q in medically complex elderly patients.
- To assess the reliability and responsiveness of the OAB-q in this demographic.
Main Methods:
- Second-order confirmatory factor analysis (CFA) was used to evaluate the OAB-q structure.
- Reliability was assessed using Cronbach coefficient α (CCA).
- Convergent validity, known-groups validity, and treatment responsiveness were evaluated using correlations, group comparisons, and effect sizes (ES).
Main Results:
- The CFA confirmed the OAB-q structure in 786 participants (mean age 75.0 years; 82.2% female).
- The OAB-q demonstrated good internal consistency (CCA >0.7), supported convergent validity, and established known-groups validity.
- Significant changes in OAB-q scores from baseline to week 12 with moderate-to-large ES (0.50-0.80) indicated treatment responsiveness.
Conclusions:
- The OAB-q is a reliable and valid instrument for assessing overactive bladder symptoms.
- The OAB-q is psychometrically sound for use in medically complex elderly patients.