Journal
INTERNATIONAL UROGYNECOLOGY JOURNAL
Volume 33, Issue 11, Pages 3035-3043Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00192-021-04991-9
Keywords
Urinary bladder; overactive; Surveys and questionnaires; Validation studies as topic; Urinary incontinence; urge; Nocturia
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The Greek version of the OAB-q questionnaire shows strong psychometric properties of reliability and validity in patients with overactive bladder, with urgency incontinence and especially nocturia having the greatest impact on HRQoL.
Introduction and hypothesis The Overactive Bladder Questionnaire (OAB-q) measures overactive bladder patients' severity of symptoms and their impact on health-related quality of life (HRQoL). The aim of this study was to validate the OAB-q in Greek patients with overactive bladder and report clinical implications of the disease. Methods In total, 107 patients were recruited consecutively in our clinic. They completed the OAB-q and Short Form-36 Health Survey (SF-36) twice, 3 months apart. Simultaneously, they initiated lifestyle changes and drug therapy. The reliability of OAB-q was estimated by its internal consistency (Cronbach's alpha). Validity was estimated by criterion validity and concurrent validity by comparison with SF-36. Results The sample's mean age was 62.1 years, and 74.8% were women. Cronbach's alpha exceeded the 0.7 threshold in all OAB-q subscales, implying good reliability of internal consistency for the OAB-q. In addition, moderate (Pearson's r > 0.3) or strong (r > 0.5) correlations were observed between OAB-q subscales and the relevant SF-36 subscales, implying concurrent validity. Clinically, urgency incontinence affected symptom bother (p = 0.001), concern/worry (p = 0.031) and social interaction (p = 0.027). Nocturia had the largest impact on HRQoL in patients with overactive bladder, as it affected all the OAB-q subscales (p < 0.001). Conclusions The Greek version of the OAB-q has shown strong psychometric properties of reliability and validity in our study. Urgency incontinence and especially nocturia seem to affect the HRQoL of patients with overactive bladder. OAB-q is valid for Greek patients with overactive bladder and can be used for clinical and academic purposes.
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