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Study Type – Symptom prevalence (prospective cohort) Level of Evidence 1b What’s known on the subject? and What does the study add? Few prevalence studies used current ICS LUTS symptom definitions and to our knowledge no studies exist that estimate total worldwide prevalence of reported LUTS symptoms. One of the primary goals of this analysis was to estimate current and future worldwide prevalence of LUTS among adults. Our estimation model suggests that LUTS are highly prevalent worldwide, with an increasing burden predicted over time. OBJECTIVE • To estimate and predict worldwide and regional prevalence of lower urinary tract symptoms (LUTS), overactive bladder (OAB), urinary incontinence (UI) and LUTS suggestive of bladder outlet obstruction (LUTS/BOO) in 2008, 2013 and 2018 based on current International Continence Society symptom definitions in adults aged ≥20 years. PATIENTS AND METHODS • Numbers and prevalence of individuals affected by each condition were calculated with an estimation model using gender‐ and age‐stratified prevalence data from the EPIC study along with gender‐ and age‐stratified worldwide and regional population estimates from the US Census Bureau International Data Base. RESULTS • An estimated 45.2%, 10.7%, 8.2% and 21.5% of the 2008 worldwide population (4.3 billion) was affected by at least one LUTS, OAB, UI and LUTS/BOO, respectively. By 2018, an estimated 2.3 billion individuals will be affected by at least one LUTS (18.4% increase), 546 million by OAB (20.1%), 423 million by UI (21.6%) and 1.1 billion by LUTS/BOO (18.5%). • The regional burden of these conditions is estimated to be greatest in Asia, with numbers of affected individuals expected to increase most in the developing regions of Africa (30.1–31.1% increase across conditions, 2008–2018), South America (20.5–24.7%) and Asia (19.7–24.4%). CONCLUSIONS • This model suggests that LUTS, OAB, UI and LUTS/BOO are highly prevalent conditions worldwide. Numbers of affected individuals are projected to increase with time, with the greatest increase in burden anticipated in developing regions. • There are important worldwide public‐health and clinical management implications to be considered over the next decade to effectively prevent and manage these conditions.

respondents selected a link to an informed consent page, followed by the survey. Participants were asked to rate how often they experienced individual LUTS during the previous 4 weeks, on a five-point Likert scale, and, if experienced, how much the symptom bothered them. Descriptive statistics were used to summarize and present the data. RESULTSResponses rates for the USA, the UK and Sweden were 59.6%, 60.6% and 52.3%, respectively, with a final sample of 30 000 (USA 20 000; UK 7500; Sweden 2500). The mean age (range) of the participants was 56.6 (40-99) years; the mean percentages for race were 82.9% white, 6.7% black, 6.0% Hispanic and 4.4% Asian/other. The prevalence of LUTS was defined by two symptom frequency thresholds, i.e. at least 'sometimes' and at least 'often' for all LUTS except incontinence, where frequency thresholds were at least 'a few times per month' and at least 'a few times per week' .The prevalence of at least one LUTS at least 'sometimes' was 72.3% for men and 76.3% for women, and 47.9% and 52.5% for at least 'often' for men and women, respectively. For most LUTS, at least half of the participants were bothered 'somewhat' or more using a frequency threshold of at least 'sometimes' . For a threshold of at least 'often', 'somewhat' or more bother was reported by ≥ 70% of participants except for terminal dribble in men and split stream in women. CONCLUSIONIn this large population study of three countries, LUTS are highly prevalent among men and women aged > 40 years. In general, LUTS experienced 'often' or more are bothersome to most people.

OBJECTIVES To examine the effect overactive bladder (OAB) and other lower urinary tract symptoms (LUTS) on health‐related quality of life (HRQoL) in a population sample, as OAB often occurs in conjunction with many other LUTS. SUBJECTS AND METHODS A nested case‐control analysis was performed on men and women with (cases) and without (controls) OAB, from the EPIC study. OAB was assessed using 2002 International Continence Society definitions. Based on their responses to questions about LUTS, cases were classified into five groups; continent OAB, OAB with incontinence, OAB + postmicturition, OAB + voiding, and OAB + postmicturition + voiding. Both cases and controls were asked questions about symptom bother (OAB‐q), generic QoL (EQ‐5D), work productivity (Work Productivity and Activity Impairment, WPAI), depressive symptoms (Center for Epidemiologic Studies Depression Scale), sexual satisfaction, and erectile dysfunction (men only) using the Massachusetts Male Aging Study. Cases answered additional condition‐specific questions HRQoL (OAB‐q short form), Patient Perception of Bladder Condition and work productivity related to a specific health problem (WPAI‐SHP). General linear models were used to evaluate group differences. RESULTS Of the EPIC participants, 1434 identified OAB cases were matched by age, gender and country, with 1434 participants designated as controls. Cases and controls were primarily Caucasian (96.2% and 96.7%, respectively), and most (65%) were female; the mean age was 53.8 and 53.7 years, respectively. Comorbid conditions differed significantly by case/control status, with cases reporting significantly greater rates of chronic constipation, asthma, diabetes, high blood pressure, bladder or prostate cancer, neurological conditions and depression. There were significant differences between the cases and controls in all reported LUTS. The OAB + postmicturition + voiding group reported significantly greater symptom bother, worse HRQoL, higher rates of depression and decreased enjoyment of sexual activity, than the other subgroups. CONCLUSION OAB has a substantial, multidimensional impact on patients; OAB with additional LUTS has a greater impact. The diagnosis and treatment of OAB should be considered in conjunction with other LUTS, to maximize treatment options and optimize patient outcomes.

The reduction in hospitalizations, costs, and other resource use achieved using standardized telephonic case management in the early months after a heart failure admission is greater than that usually achieved with pharmaceutical therapy and comparable with other disease management approaches.

perception of bladder problems, anxiety and depression. RESULTSThe overall survey response rate was 59.2%; 30 000 subjects (14 139 men and 15 861 women) participated. Men and women with LUTS in the all LUTS subgroup (storage, voiding and postmicturition) reported the lowest levels of HRQL and highest levels of anxiety and depression, with 35.9% of men and 53.3% of women meeting self-reported screening criteria for clinical anxiety (Hospital Anxiety and Depression Scale, HADS, Anxiety ≥ 8), and 29.8% of men and 37.6% of women meeting self-reported criteria for clinical depression (HADS Depression ≥ 8). In both men and women, storage symptoms were significantly associated with greater perceived bladder impact, whereas voiding symptoms were not. Significant predictors of anxiety included nocturia, urgency, stress urinary incontinence, leaking during sexual activity, weak stream and split stream in women; and nocturia, urgency, incomplete emptying and bladder pain in men. For depression, weak stream, urgency and stress urinary incontinence were significant for women, and perceived frequency and incomplete emptying were significant for men. CONCLUSIONThe negative effect of LUTS is apparent across several domains of HRQL and on overall perception of bladder problems, general health status and mental health. The high level of psychiatric morbidity in patients with multiple LUTS has important implications for treatment and highlights the need for further research to pinpoint specific mechanisms underlying this association. KEYWORDSLUTS, depression, anxiety, health-related quality of life, OAB, BPH, burden OBJECTIVETo evaluate the impact of lower urinary tract symptoms (LUTS) on urinary-specific healthrelated quality of life (HRQL), generic health indices, depression and anxiety in a population-representative sample of men and women, as research has linked LUTS with reduced HRQL and depression, but little is known about the effects of individual LUTS on HRQL, depression and anxiety.

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