Welcome

This website is intended for international healthcare professionals with an interest in the treatment of Nocturia. By clicking the link below you are declaring and confirming that you are a healthcare professional. Please answer a few short questions about this resource centre.

You are here

Prevalence of lower urinary tract symptoms, overactive bladder and urinary incontinence in western Turkey: Results of a population-based survey

By A. E. Zumrutbas, A. I. Bozkurt, E. Tas, C. I. Acar, O. Alkis, K. Coban, B. Cetinel and Z. Aybek.

International Journal of Urology, Volume 21, Issue 10, 2014, Pages 1027-1033

Editor’s comments:
The objective of this study was to evaluate the prevalence of lower urinary tract symtoms (LUTS), overactive bladder (OAB) and urinary incontinence (UI) in both men and women aged ≥18 years in western Turkey. This study represents the first population-based epidemiological study carried out in Turkey using the current ICS definitions of LUTS including OAB and UI.

A random sample of 2128 women and men aged ≥18 years was selected from the health registries. A questionnaire was developed by the study team and consisted of five parts including: sociodemographic data; comorbid conditions, dietary habits and risk factors; LUTS, OAB and UI symptoms; height, weight, body mass index, blood pressure, heart rate and dypstick urinalyses (filled out by the site staff).

A total of 1571 (74%) individuals agreed to participate, and analysis was carried out on 1555 people, 636 men (40.9%) and 919 women (59.1%). Women reported storage LUTS more frequently than men (64.1% vs 44.2%, P < 0.001). The prevalence of all storage symptoms increased with age in both sexes. The most common storage symptom was urgency in women (35.6%) and nocturia (24.8%) in men. Particularly, nocturia was observed to become more prominent in men after the age of 40 years and in women after the age of 60 years. When nocturia was defined as voiding “two or more” times each night, the prevalence of nocturia decreased from 24.8% to 16.1% in men and from 31.0% to 18.6% in women, respectively.

Interestingly, in the methodology of this study, questionnaires were administration in primary healthcare centers while in other previously published large-scale trials questionnaires were administered by telephone or internet. Thus, the participants had the opportunity to request explanations to prevent misunderstanding any questions and also to overcome literacy problems. Another advantage of this study was the sampling modality adepted, which represented the real population as participants were determined from equally distributed population records randomly. In addition, the application of ICS definition of LUTS, OAB and UI made the results of this cross sectional population-based survey more precise and stringent.

ABSTRACT

OBJECTIVE:

To estimate the prevalence of lower urinary tract symptoms, urinary incontinence and overactive bladder in western Turkey.

METHOD:
This cross-sectional, population-based survey was carried out between May and October 2012. A random sample of 2128 women and men aged ≥18 years was selected from the health registries. A questionnaire including sociodemographic data, comorbid conditions, lower urinary tract symptoms, overactive bladder and urinary incontinence symptoms, body mass index, vital signs, and dipstick urinalysis was developed. The questions were answered by the participants, and remaining data were provided by the site staff. International Continence Society definitions were used.

RESULTS:
A total of 1571 (74%) individuals agreed to participate, and analysis were carried out on 1555 people (636 men [40.9%] and 919 women [59.1%]) after 16 individuals with a nitrite-positive dipstick test were excluded. Lower urinary tract symptoms were reported by 71.0% of the study population. The prevalence of storage, voiding and post-micturition symptoms were 56.1% (44.2% men, 64.1% women), 39.3% (40.9% men, 37.8% women) and 30.7% (38.6% men, 28.7% women), respectively. The most prevalent storage symptom was urgency, which was reported by 29.3% of the study population (20.1% men, 35.6% women). The prevalence of urge, stress and mixed urinary incontinence were: 6.5% (3.9% men, 8.2% women), 14.1% (3.9% men, 21.2% women) and 5.6% (0.8% men, 9.0% women), respectively.

CONCLUSION:
The present study is the first and largest population-based survey evaluating the prevalence of lower urinary tract symptoms, urinary incontinence and overactive bladder in Turkey. Our findings show these symptoms are highly prevalent in western Turkey.