Is the prevalence of overactive bladder overestimated?

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Tikkinen , K A O , Tammela , T , Rissanen , A , Valpas , A , Huhtala , H & Auvinen , A 2007 , ' Is the prevalence of overactive bladder overestimated? A population-based study in Finland ' , PLoS One , vol. 2 , no. 2 , e195 . https://doi.org/10.1371/journal.pone.0000195

Title: Is the prevalence of overactive bladder overestimated?;
A population-based study in Finland
Author: Tikkinen, Kari A. O.; Tammela, Teuvo; Rissanen, Aila; Valpas, Antti; Huhtala, Heini; Auvinen, Anssi
Contributor: University of Helsinki, Tampere University Hospital
University of Helsinki, Dep. of Psychiatry (Institute of Clinical Medicine) (-2009)
Date: 2007
Number of pages: 1
Belongs to series: PLoS One
ISSN: 1932-6203
URI: http://hdl.handle.net/10138/305375
Abstract: Background. In earlier studies, one in six adults had overactive bladder which may impair quality of life. However, earlier studies have either not been population-based or have suffered from methodological limitations. Our aim was to assess the prevalence of overactive bladder symptoms, based on a representative study population and using consistent definitions and exclusions. Methodology/Principal Findings. The aim of the study was to assess the age-standardized prevalence of overactive bladder defined as urinary urgency, with or without urgency incontinence, usually with urinary frequency and nocturia in the absence of urinary tract infection or other obvious pathology. In 2003-2004, a questionnaire was mailed to 6,000 randomly selected Finns aged 18-79 years who were identified from the Finnish Population Register Centre. Information on voiding symptoms was collected using the validated Danish Prostatic Symptom Score, with additional frequency and nocturia questions. Corrected prevalence was calculated with adjustment for selection bias due to non-response. The questionnaire also elicited co-morbidity and socio-demographic information. Of the 6,000 subjects, 62.4% participated. The prevalence of overactive bladder was 6.5% (95% CI, 5.5% to 7.6%) for men and 9.3% (CI, 7.9% to 10.6%) for women. Exclusion of men with benign prostatic hyperplasia reduced prevalence among men by approximately one percentage point (to 5.6% [CI, 4.5% to 6.6%]). Among subjects with overactive bladder, urgency incontinence, frequency, and nocturia were reported by 11%, 23%, and 56% of men and 27%, 38%, and 40% of women, respectively. However, only 31% of men and 35% of women with frequency, and 31% of subjects of both sexes with nocturia reported overactive bladder. Conclusions/Significance. Our results indicate a prevalence of overactive bladder as low as 8% suggesting that, in previous studies, occurrence has been overestimated due to vague criteria and selected study populations regarding age distribution and low participation.
Subject: 3121 Internal medicine
3126 Surgery, anesthesiology, intensive care, radiology
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