Prevalence, risk factors and the bother of lower urinary tract symptoms in China: a population-based survey

An evaluation of lower urinary tract symptoms among patients with hypertension: A cross-sectional study

Background

Hypertension (HTN) is a prevalent and impactful health concern associated with cardiovascular morbidity and mortality. This research delves into the intricate relationship between HTN and lower urinary tract symptoms (LUTS), acknowledging the multifaceted nature of these conditions and their potential impact on individuals' quality of life.

Materials and Methods

This cross-sectional study, conducted in Nablus, Palestine, employed convenient sampling to recruit hypertensive patients from the Ministry of Health clinics between September and December 2023. The inclusion criterion involved confirmed hypertensive patients, while the exclusion criterion included individuals with specific health conditions. The collected data included demographic, comorbidity, and lifestyle factor data. The study utilized the urogenital distress inventory 6 (UDI-6) and Incontinence Impact Questionnaire (IIQ)-7 short forms to assess urinary distress symptoms and the impact of urinary incontinence on quality of life. All the statistical analyses, including Pearson, Chi-square, Fisher's exact, Kruskal-Wallis, and Mann-Whitney tests, were performed with various tests for significance, and the significance level was set at P < 0.05.

Results

Among the 351 participants meeting the inclusion criteria, females (62.1%) and married individuals (83.5%) were the predominant participants. The majority were aged 58-67 (42.5%), had a high school education (39.0%), and had a body mass index (BMI) of 30-34.9 (30.2%). Significant correlations were found between UDI-6 scores and sex, age, marital status, education level, employment status, and comorbidities. The IIQ-7 score was significantly correlated with female sex, marital status, age, comorbidities, duration of HTN, employment status, and education level. Both the UDI-6 and IIQ-7 scores revealed considerable impacts on urinary symptoms and quality of life. A significant negative correlation (r = -0.579) between the IIQ-7 score and UDI-6 score emphasized the interconnectedness of urinary distress symptoms and their impact on quality of life (P < 0.001). These findings underscore the multifaceted nature of LUTS and their profound effects on hypertensive patients' well-being.

Conclusion

Our study revealed a significant association between HTN and LUTS, especially among females and specific demographic groups. This emphasizes the need for comprehensive management. The observed negative impact on quality of life emphasizes the significance of adopting holistic approaches to address both conditions.

Prevalence of Double Incontinence and Lower Urinary Tract Symptoms in Patients with Fecal Incontinence: A Single-center Observational Study

Objectives

Double incontinence (DI), which is the co-occurrence of fecal incontinence (FI) and urinary incontinence (UI), increases with age and has a greater negative impact on the quality of life (QOL) than either incontinence alone. We aimed to assess lower urinary tract symptoms (LUTS) in patients with FI to elucidate the prevalence and characteristics of DI.

Methods

This study enrolled consecutive patients who visited our hospital with FI symptoms. FI was evaluated using the Cleveland Clinic Florida Fecal Incontinence Score (CCFIS). LUTS were assessed using the International Prostate Symptom Score (IPSS), QOL score (IPSS-QOL) and Overactive Bladder Symptom Score (OABSS).

Results

This study evaluated 140 patients (96 women [mean age: 70.7 years] and 44 men [mean age: 74.4 years]). The mean IPSS was significantly higher in men than in women (12.0 vs. 7.5, p = 0.003). A positive correlation was found between IPSS and CCFIS in women (r = 0.256, p = 0.012) but not in men. For both sexes, the older group (aged ≥70 years) had higher OABSS scores and more urge UI instances than the younger group (aged ≤69 years). Of the 140 patients with FI, 78 (55.7%) had DI, and DI was more common in women than in men (63.5% vs. 38.6%, p = 0.006).

Conclusions

The characteristics of LUTS and UI in patients with FI were comparable to those in the general population for both sexes; however, the prevalence of DI was much higher among patients with FI than that in the general population.

Gender differences of lower urinary tract symptoms in older Chinese Americans

Objective

To describe whether or not there are gender differences in lower urinary tract symptoms (LUTS) prevalence and risk factors in community-dwelling older Chinese Americans.

Methods

We performed a secondary analysis of a prospective cross-sectional population-based survey of Chinese Americans aged 60 years and older between January 2011 and December 2013 in English, Mandarin, Cantonese, Taishanese, or Teochew. A clinical review of systems was used to assess LUTS, which included urinary frequency, urgency, burning and/or pain, blood in urine, and urinary incontinence.

Results

Of the total 3157 people queried, 42% were men and 58% were women. More men reported LUTS compared to women (32.9% vs. 28.6%, p=0.01). In a multivariable analysis, female gender (adjusted odds ratio [aOR] 0.60, 95% confidence interval [CI] 0.49-0.73), being married (aOR 0.79, 95% CI 0.65-0.97), and smoking (aOR 0.66, 95% CI 0.49-0.88) were found to be protective, while traditional Chinese medicine use (aOR 1.51, 95% CI 1.28-1.78), heart disease (aOR 1.54, 95% CI 1.24-1.91), and anxiety (aOR 1.69, 95% CI 1.25-2.28) were most strongly associated with increased odds of LUTS. When examining genders separately, being married was found to be protective only in women. Meanwhile, unique factors found in men were hypertension, heart disease, and practice of Tai Chi.

Conclusion

In this large population-based study, LUTS were more prevalent in older Chinese American men than women. We also found gender-specific factors that influenced the odds of reporting LUTS; however, traditional Chinese medicine use was the only factor that was shared by both genders. Future longitudinal investigations are needed to elucidate these underlying mechanisms to provide evidence-based and culture-specific guidelines for this rapidly growing population.

Prevalence and influencing factors of lower urinary tract symptoms in female nurses: a cross-sectional study based on TARGET

Background

Even though occupational women have a high incidence of lower urinary tract symptoms (LUTS), which seriously affect their daily work life, few large scale sample studies have provided empirical evidence to support this phenomenon among female nurses in China. Consequently, this article investigated female nurses who was presupposed to have a high prevalence of LUTS, which adversely exposes their health and patient safety to these risks. Additionally, it is considered important to explore the factors associated with LUTS in female nurses for patient care safety and nurse bladder health practice.

Objectives

The purpose of this study was to assess the incidence of LUTS and symptoms-related risk factors among female nurses, to provide evidence for the prevention and control of LUTS.

Methods

An online survey recruiting 23,066 participants was carried out in a multicenter cross-sectional study in 42 hospitals from December 2020 to November 2022. Stepwise multivariate logistic regression analysis and nomogram were used to identify the factors associated with lower urinary tract symptoms. Besides, SPSS version 26.0, R version 4.2.2, and GraphPad Prism Version 8.3 software packages were used for statistical analysis.

Results

Based on the completion rate of the questionnaire which was 84.1% (n = 19,393), it was found that among 19,393 female nurses, the prevalence of LUTS was 67.71% and this rate was influenced by age, Body Mass Index (BMI), marital status, years of working, menstrual status, mode of delivery, history of breastfeeding, history of miscarriage, history of alcohol and coffee or tea consumption (p < 0.05). Interestingly, we also find that in addition to the above mentioned factors, anxiety, depression, and perceived stress were also related to LUTS in female nurses (p < 0.05).

Conclusion

Given the high prevalence of LUTS among female nurses and their potential influencing factors, female nurses should focus on their reproductive health and develop good lifestyle habits. Thus, nursing managers should provide a warm and harmonious work environment and sensitize female nurses to increase their awareness about the importance of drinking clean water and urinating during work in a hygienic environment.

Prevalence and Risk Factors of Urinary Incontinence Among Elderly Adults in Rural China: A Cross-Sectional Survey

PURPOSE

The purpose of this study was to explore the prevalence of urinary incontinence (UI) and several subtypes: (stress, urge, and mixed UI) and the influence of multiple factors on the likelihood of UI.

DESIGN

Epidemiological study based on cross-sectional data collection.

SUBJECTS AND SETTING

The sample comprised 1279 inhabitants 65 years and older residing in 10 villages randomly selected from the Shanxi province, located in North China.

METHODS

The presence and types of UI were assessed using the International Consultation of Incontinence Questionnaire-Short Form. Sociodemographic parameters were also recorded, along with data on lifestyle, bowel function, and medical conditions. The Activity of Daily Living Scale and Mini-Mental State Examination instruments were used to evaluate physical and cognitive functions, respectively. A multivariate logistic regression model with the backward method was employed to identify factors associated with UI.

RESULTS

The prevalence of any UI among the rural Chinese elderly 65 years and older was 46.8%, with a female predominance (56.3% in females vs 35.0% in males). The most common incontinence subtype in women was mixed UI (n = 170, 24.0%), followed by stress UI (n = 131, 18.5%) and urge UI (n = 97, 13.7%). The most prevalent form of UI in males was urge UI (n = 190, 33.2%), followed by stress UI (n = 5, 0.9%) and mixed UI (n = 5, 0.9%). Less than one quarter of respondents (17%, n = 102) of participants with UI had consulted a doctor. Multivariate analysis found that poorer physical function, poor quality of sleep, and fecal incontinence were common factors associated with UI in both women and men. In women, higher body mass index and constipation were also independent correlates, as were poor vision and heart disease in men. Poorer physical function was associated with all UI subtypes. For female stress UI, poorer cognitive status, tea drinking, and hypertension also emerged as independent risk factors. Heart disease was an independent risk factor in both female and male urge UI; as was consumption of a non-plant-based diet for female mixed and urge UI; nonfarmer and traumatic brain injury for female urge UI; and poor vision and fecal incontinence in male urge UI.

CONCLUSIONS

Chinese rural citizens showed a high UI prevalence, but only a small proportion had consulted a health care provider. Physical function decline was the most important contributor to UI among participants. Individualized intervention programs targeting modifiable risk factors among high-risk populations should be developed.

The Frequency of Metabolic Syndrome in Aged Female Patients (Older Than 65 Years) With and Without Stress Urinary Incontinence: A Case-Control Study

OBJECTIVE

The aim of the study was to assess the incidence of metabolic syndrome (MetS) in aged patients (older than 65 years) with and without stress urinary incontinence (SUI).

METHODS

We evaluated the components of MetS in 460 SUI patients and 460 age-matched women without urinary incontinence from January 2009 to October 2019. Stress urinary incontinence was diagnosed by clinical complaint and the presence of involuntary urine leakage during physical activity. Definition of MetS was on the basis of the National Cholesterol Education Program Adult Treatment Panel III recommendations definition (NCEPATPIII) and the International Diabetes Federation criteria (IDF).

RESULTS

Totally, 460 SUI patients with the median age of 70 years were eventually included in the study. Subsequently, 460 age-matched controls were selected. The prevalence of MetS was more frequent in SUI patients based on the NCEPATPIII (43.04% vs 19.78%, P < 0.0001) and IDF criteria (45.22% vs 20.22%, P < 0.0001). Moreover, logistic regression analysis revealed that MetS significantly increased the risk of SUI (odds ratio = 3.06, 95% confidence interval = 2.28-4.09) according to the NCEPATPIII definition and (odds ratio = 3.26, 95% confidence interval = 2.43-4.34) on the basis of IDF criteria compared with controls. Patients in the SUI group had a statistically higher body mass index (P < 0.0001), larger waist (P < 0.0001), higher level of fasting blood glucose (P = 0.0001), triglycerides (P = 0.00), and systolic blood pressure (P = 0.0001) than controls. Patients with SUI demonstrated a statistically worse symptom score in all aspects compared with controls (P < 0.0001).

CONCLUSIONS

The prevalence of MetS was higher in older women with SUI than in an age- and sex-matched control group without clinical SUI. Further studies are warranted to determine the pathophysiology mechanism of SUI and MetS.

Sexual Dysfunction in Patients With Urinary Bladder Stones but no Bladder Outlet Obstruction

Objective: To explore the correlates of sexual dysfunction and lower urinary tract symptoms (LUTS) in male patients with urinary bladder stones and to determine the effect of stone extraction on recovery of sexual function.

Materials and Methods: A total of 87 male patients with primary bladder stones were studied from January 2015 to May 2016. All patients underwent pneumatic lithotripsy for bladder stones. Sexual dysfunction was assessed based on sexual function assessment scales. The relationship of bladder stones with sexual dysfunction or LUTS was assessed using a two-sample t-test. Postoperative improvement of sexual function was assessed by repeated measures Analysis of Variance (ANOVA).

Results: Forty-one patients had primary bladder stones and 46 had secondary stones from the kidneys. Eighty-three of 87 patients (95%) had sexual dysfunction; 79 patients (91%) had both sexual dysfunction and LUTS. There was a significant association between bladder stones and sexual dysfunction, between sexual dysfunction and LUTS, and between bladder stone and LUTS (p < 0.05). There was no significant association between the course of illness, size and number of bladder stones, or urinary tract infection with sexual function (p > 0.05). In addition, among 83 patients with both bladder stone and sexual dysfunction, 61 patients (73%) had benign prostatic hyperplasia (BPH) and 22 patients (27%) had no BPH. On postoperative evaluation at 3 months, sexual dysfunction scores were significantly improved in 77 patients (88.5%)

Conclusion: Patients with bladder stones have a high incidence of sexual dysfunction, particularly those with co-existing LUTS and BPH. About 1/3 patients without BPH had sexual dysfunction and surgical removal of bladder stones significantly improved sexual function and LUTS.

Development of primary design guidelines for supportive underwear to elevate the bladder neck in women based on finite element analysis of the pelvis

The use of supportive underwear has been applied for preventing stress urinary incontinence (SUI) which is caused by descent of the bladder neck due to weakness in the pelvic floor muscles, because it is known that SUI can be improved by elevating the descended bladder neck. However, appropriate approaches to the underwear design are still being explored. In order to establish an appropriate first-order design strategy for supportive underwear, clarifying the relationship between the pressure from the underwear and the amount of elevation of the bladder neck is necessary. We constructed a finite element model of the pelvis based on magnetic resonance images of a subject in an upright position, experimentally explored Young's modulus of the soft tissue and analyzed the amount of elevation of the bladder neck when changing the combination of applied pressures from the underwear. The position of the bladder neck relatively elevated when the pressure in the region from the abdomen to the pubis decreased and when the pressure in the region from the perineum to the coccyx increased, suggesting an appropriate design for the supportive underwear.

Prevalence and predictors of lower urinary tract symptoms in Solomon Islander adult men

Background:

Despite growing interest in the prevention of lower urinary tract symptoms (LUTS) globally and in the Asia-Pacific region, population-based evidence is limited in the smaller Pacific Island countries such as in the Solomon Islands. This study aimed to investigate the prevalence and describe the risk factors associated with moderate to severe LUTS among Solomon Islander men.

Methods:

A cross-sectional survey was conducted among 400 men aged ⩾18 years living in Honiara, Solomon Islands. LUTS were assessed using the International Prostate Symptom Score (IPSS). The association between moderate to severe LUTS and sociodemographic, health conditions and health-related factors were estimated using logistic regression adjusted for age.

Results:

Overall, 13.8% reported moderate LUTS, and 0.8% reported severe LUTS. Frequent night-time urination was the most commonly reported LUTS. The adjusted odds of moderate to severe LUTS decreased with increasing level of education. The odds increased among men reporting elevated psychological distress, increased stressful events in the past 12 months and depression.

Conclusions:

About one in six Solomon Islander men experience moderate to severe LUTS, having a negative impact on their mental health and general well-being.

Using Search Trends to Analyze Web-Based Interest in Lower Urinary Tract Symptoms-Related Inquiries, Diagnoses, and Treatments in Mainland China: Infodemiology Study of Baidu Index Data

Background

Lower urinary tract symptoms (LUTS) are one of the most commonly described urination disorders worldwide. Previous investigations have focused predominantly on the prospective identification of cases that meet the researchers’ criteria; thus, the genuine demands regarding LUTS from patients and related issues may be neglected.

Objective

We aimed to examine web-based search trends and behaviors related to LUTS on a national and regional scale by using the dominant, major search engine in mainland China.

Methods

Baidu Index was queried by using LUTS-related terms for the period of January 2011 to September 2020. The search volume for each term was recorded to analyze search trends and demographic distributions. For user interest, user demand graph data and trend data were collected and analyzed.

Results

Of the 13 LUTS domains, 11 domains are available in the Baidu Index database. The Baidu search index for each LUTS domain varied from 37.78% to 1.47%. The search trends for urinary frequency (2011-2018: annual percent change APC=7.82%; P<.001), incomplete emptying (2011-2014: APC=17.74%; P<.001), nocturia (2011-2018: APC=11.54%; P<.001), dysuria (2017-2020: APC=20.77%; P<.001), and incontinence (2011-2016: APC=13.39%; P<.001) exhibited fluctuations over time. The search index trends for weak stream (2011-2017: APC=−4.68%; P<.001; 2017-2020: APC=9.32%; P=.23), split stream (2011-2013: APC=9.50%; P=.44; 2013-2020: APC=2.05%; P=.71), urgency (2011-2018: APC=−2.63%; P=.03; 2018-2020: APC=8.58%; P=.19), and nocturnal enuresis (2011-2018: APC=−3.20%; P=.001; 2018-2020: APC=−4.21%; P=.04) remained relatively stable and consistent. The age distribution of the population for all LUTS-related inquiries showed that individuals aged 20 to 40 years made 73.86% (49,218,123/66,635,247) of the total search inquiries. Further, individuals aged 40 to 49 years made 12.29% (8,193,922/66,635,247) of the total search inquiries for all LUTS-related terms. People from the east part of China made 67.79% (45,172,031/66,635,247) of the total search queries. Additionally, most of the searches for LUTS-related terms were related to those for urinary diseases to varying degrees.

Conclusions

Web-based interest in LUTS-related terms fluctuated wildly and was reflected timely by Baidu Index in mainland China. The web-based search popularity of each LUTS-related term varied significantly and differed based on personal interests, the population’s concerns, regional variations, and gender. These data can be used by care providers to track the prevalence of LUTS and the population’s interests, guide the establishment of disease-specific health care policies, and optimize physician-patient health care sessions.

Clinical Guidelines for Female Lower Urinary Tract Symptoms (second edition)

The present article is an abridged English translation of the Japanese Clinical Guidelines for Female Lower Urinary Tract Symptoms (second edition), published in September 2019. These guidelines consist of a total of 212 pages and are unique worldwide in that they cover female lower urinary tract symptoms other than urinary incontinence. They contain two algorithms for "primary treatment" and "specialized treatment," respectively. These guidelines, consisting of six chapters, address a total of 26 clinical questions including: (i) treatment algorithms; (ii) what are female lower urinary tract symptoms?; (iii) epidemiology and quality of life; (iv) pathology and illness; (v) diagnosis; and (vi) treatment. When the patient's symptoms mainly involve voiding and post-micturition symptoms, specialized treatment should be considered. In the event of voiding symptoms concurrent with storage symptoms, residual urine should be measured; if the residual urine volume is <100 mL, then diagnosis and treatment for storage symptoms is prioritized, and if the volume is ≥100 mL, then specialized treatment should be considered. When storage symptoms are the primary condition, then the patient is subject to the primary treatment algorithm. Specialized treatment for refractory overactive bladder includes botulinum toxin injection and sacral nerve stimulation. For stress urinary incontinence, surgical treatment is indicated, such as urethral slings. The two causes of voiding symptoms and post-micturition symptoms are lower urinary tract obstruction and detrusor underactivity (underactive bladder). Mechanical lower urinary tract obstruction, such as pelvic organ prolapse, is expected to improve with surgery.

Prevalence of lower urinary tract symptoms in nurses and civil servants working at a hospital: a cross-sectional study

Background

Lower urinary tract symptoms (LUTS) are common in women and can interrupt daily living activities of the individuals. The study aimed at determining the LUTS prevalence and the influencing factors in nurses and civil servants working at a hospital.

Methods

This cross-sectional and descriptive study was conducted with 158 female nurses and 105 female civil servants. The data were obtained with a data collection form and the Bristol Female Lower Urinary Tract Symptoms-Short Form.

Results

This paper exposes that the prevalence of at least one LUTS was 94.2% in nurses and 97.1% in civil servants. The most common LUTS symptoms of nurses and civil servants were urgency (60.1% nurses, 81.9% civil servants) and urge incontinence (59.5% nurses, 81.9% civil servants). Nurses (60.8%) expressed significantly higher rates of having inadequate time going to the toilet due to their work conditions compared to the civil servants (41.9%) (p<0.05). BFLUTS-SF scores in terms of age, BMI, parity, having cesarean and vaginal delivery and urinary incontinence in their previous pregnancies were compared between two groups, statistically significant differences were found (p<0.05).

Conclusion

Workplace conditions of the health workers should be reorganizing to have healthy urinary habits for preventing them from the development of LUTS.

The impact of smoking on male lower urinary tract symptoms (LUTS)

Lower urinary tract symptoms (LUTS) are substantially prevalent and increase with age. Research on smoking as a risk factor for LUTS has been inconclusive. The present study examined the association between smoking habits and male LUTS in a population-based study using a web-based questionnaire. We firstly screened a total of 10,000 male participants who were selected according to the age distribution in the Japanese population in government data, in order to check smoking habits. We then performed a web-based survey to further investigate factors associated with LUTS, using the Overactive Bladder Symptom Score (OABSS), International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF), and International Prostate Symptom Score (IPSS) questionnaire. Finally, 9042 participants (non-smokers, n = 3545; ex-smokers, n = 3060; and current-smokers, n = 2437) completed the full continence survey. Current-smokers (2.54 ± 2.73, 1.98 ± 3.57, 5.75 ± 7.02) and ex-smokers (2.80 ± 2.52, 1.81 ± 3.10, 6.58 ± 6.96) showed significantly higher OABSS total, ICIQ-SF total, and IPSS total scores than non-smokers (1.98 ± 2.40, 1.35 ± 2.90, 4.23 + -/6.33) (p: < 0.0001, < 0.0001, < 0.0001, respectively). In comparison to non-smokers, the prevalence of risk ratio for day-time frequency, nocturia, urgency urinary incontinence (UUI), OAB, and IPSS ≥ 8 were 1.2 1.2 1.4 1.5 1.5, respectively, in current-smokers and 1.3, 1.5, 1.5, 4.5, 1.8 in ex-smokers. The relative risk of OAB, nocturia, UUI, and IPSS ≥ 8 in ex- and current-smokers in comparison to non-smokers was high in the young age groups in comparison to the elderly groups. Current-smokers and ex-smokers showed a higher prevalence of male LUTS. This phenomenon was highly observed in relatively young age groups.

Metabolic syndrome in women with and without interstitial cystitis/bladder pain syndrome

INTRODUCTION AND HYPOTHESIS

The aim of this study was to compare the frequency of metabolic syndrome (MetS) in patients with and without interstitial cystitis/bladder pain syndrome (IC/BPS).

METHODS

This case-control study evaluated the indicators of MetS in 287 females with IC/BPS and in 287 females without IC/BPS in West China Hospital between January 2010 and January 2020. Then, the number of voids per day, frequency of night urination, O'Leary-Sant Interstitial Cystitis Symptom/Problem Index, and visual analog scale were examined in the two groups.

RESULTS

Based on both the National Cholesterol Education Program Adult Treatment Panel III recommendations and the International Diabetes Federation criteria, the distribution of MetS was statistically higher in patients with IC/BPS than in the control group, with 34.8% vs 17.8% (P < 0.0001) and 34.2% vs 20.9% (P = 0.0005), respectively. Regarding symptom scores, the IC/BPS group demonstrated significantly higher scores than the control group in all aspects (P < 0.0001). More patients with anxiety (P < 0.0001), insomnia (P < 0.0001), hypertension (P = 0.0001), and diabetes mellitus (P = 0.017) were observed in the IC/BPS group. Moreover, the findings indicated that patients with IC/BPS had a higher BMI (P = 0.0001) and larger waist circumference (P = 0.0001). Blood tests presented a significantly higher level of fasting glycemia, serum cystatin-C, and triglycerides in patients with IC/BPS. Furthermore, higher ORs for the occurrence of MetS among cases were observed, although this was not statistically significant.

CONCLUSIONS

MetS frequency was relatively high in patients with IC/BPS. Further research is needed to understand the common pathophysiologic mechanism of IC/BPS and MetS.

Lower urinary tract symptoms in older Chinese American women: prevalence and risk factors

INTRODUCTION AND HYPOTHESIS

The aim was to examine the prevalence of and risk factors for lower urinary tract symptoms (LUTS) in a community-dwelling cohort of older Chinese American women.

METHODS

We performed a secondary analysis of a prospective cross-sectional population-based survey of community-dwelling Chinese Americans aged 60 and older in English, Mandarin, Cantonese, Taishanese, or Teochew between 2011 and 2013. A clinical Review of Systems (ROS) was used to assess LUTS, which included urinary frequency, urgency, burning or pain, blood in urine, and urinary incontinence.

RESULTS

Of the 1,829 women queried, 28.6% reported LUTS. The cohort of women who reported LUTS had a mean ± SD age of 74.7 ± 8.7 years, with a BMI of 23.4 ± 3.7 kg/m² and had lived in the USA for 21.5 ± 13.1 years. Nearly 90% earned less than $10,000 a year, 50% were married, and 50% used traditional Chinese medicine (TCM) once monthly or more. In comparison with women without LUTS, women with LUTS had significantly higher rates of medical comorbidities and a poorer perception of their general health and quality of life. In multivariate regression analysis, any LUTS were significantly associated with older age (aOR 1.03, 95% CI 1.01-1.04), TCM use (aOR 1.67, 95% CI 1.34-2.07), anxiety (aOR 1.45, 95% CI 1.02-2.06), depression (aOR 2.00, 95% CI 1.53-2.61), and a history of stroke (aOR 1.90, 95% CI 1.19-3.02).

CONCLUSIONS

Lower urinary tract symptoms are common among older Chinese American women, particularly in those who are older, use TCM regularly, or report a history of anxiety, depression, or stroke.

Prevalence and associated factors of urinary incontinence in women living in China: a literature review

Background

This review of studies on urinary incontinence (UI) was focused primarily on UI prevalence rates and associated factors across the adult lifecourse of Chinese women. UI is a urologic symptom that can have a significant impact on women's physical and mental health and quality of life. In addition, women with UI may experience socioeconomic burdens due to UI’s effect on their ability to work and function in society. Although researchers from many countries have reported prevalence rates and associated factors for UI, little is known about the prevalence of UI in China’s large female population. Language may act as a barrier to the inclusion of published studies in English-language journals. To overcome this barrier and to add to the global knowledge base about UI in women, the authors reviewed and discussed findings from epidemiological studies published in China and in Chinese language.

Methods

The authors retrieved research studies from the Wanfang database using the following search terms: "Subject: (Female) × Subject: (Urinary incontinence) × Subject: (Prevalence) × Date: 2013 to 2019". Searches employed the China National Knowledge Infrastructure Database, VIP Database for Chinese Technical Periodicals and China Biology Medicine Database. The authors also used PubMed to search English-language studies published in Chinese journals on UI in Chinese women.

Results

This literature review includes 48 articles published between January 2013 and December 2019. The overall UI prevalence rates reported in adult Chinese women ranged from 8.7 to 69.8%, representing 43–349 million women, respectively. For women aged 17–40 years, 41–59 years, and 60 years and older, prevalence rates ranged from 2.6–30.0, 8.7–47.7, to 16.9–61.6%, respectively. Significant associated factors for overall UI included age, body mass index, constipation, parity, and menopause. Despite the 17–40 age range being peak reproductive years, the literature revealed little focus on UI prevalence rates. For women aged 41–59 years, the main associated factors included those related to pregnancy and gynecologic diseases. For women 60 years and older, chronic diseases represented most of the associated factors.

Conclusions

About 43–349 million Chinese women may experience UI. Many of the identified associated factors could be mitigated to reduce UI incidence and prevalence rates. Little is known about the prevalence rates and associated factors for UI among young (aged 17–40) Chinese women. Future research should investigate UI in young women to improve bladder health across their lifecourse.

Translation of the ICIQ-bladder diary and its validation among Chinese females with lower urinary tract symptoms

PURPOSE

To translate the International Consultation of Incontinence Questionnaire (ICIQ)-bladder diary into Chinese and validate it among Chinese women with lower urinary tract symptoms.

METHODS

After receiving permission to translate and validate the ICIQ-bladder diary from Bristol Urological Institute, a Chinese ICIQ-bladder diary was developed through translation, re-translation and cultural adaption. Subsequently, we tested its reliability, validity and responsiveness and evaluated its optimal record duration among females with lower urinary tract symptoms.

RESULTS

A total of 146 participants were recruited in the study. We interviewed eight women about the content and format of the ICIQ-bladder diary, and they all thought it was clear and easy to use. Nineteen women completed the ICIQ-bladder diary twice with a 2-week interval. The resulting agreement of each item fluctuated between 0.582 and 0.940. A total of 11 urologists and nurses evaluated its content validity, and the experts' authority was 0.94 ± 0.06. The item content validity index of the ICIQ-bladder diary was 0.909-1.000, and the scale content validity index was 0.974. Another 22 women recorded their information in the ICIQ-bladder diary pre- and post-treatment, which showed a significant difference (P < 0.01), demonstrating rigorous responsiveness. Eighty-six women completed the ICIQ-bladder diary for 4 days, and the optimal duration of the ICIQ-bladder diary was tested as 3 days.

CONCLUSIONS

The Chinese ICIQ-bladder diary demonstrates good stability, strong content validity and rigorous responsiveness among Chinese women with lower urinary tract symptoms.

The prevalence of urinary incontinence in men and women aged 40 years or over in China, Taiwan and South Korea: A cross-sectional, prevalence-based study

OBJECTIVES

To assess prevalence of urinary incontinence (UI), including urgency UI (UUI), stress UI (SUI) and mixed UI (MUI) in individuals aged ≥40 years in China, Taiwan and South Korea.

METHOD

This was a post hoc analysis of a cross-sectional, questionnaire-based internet survey. Participants were asked questions relating to urinary symptoms, health-related quality of life (HRQoL) and mental health (using the HRQoL 12-item short form health survey mental health and physical domains, and the Hospital Anxiety and Depression Scale), visits to healthcare professionals (HCPs) for any reason or for urinary symptoms, treatments for urinary symptoms and treatment satisfaction.

RESULTS

Of 8284 survey participants, 1818 (22%) reported any UI (men 17.3%, women 26.4%). MUI was the most prevalent (overall 9.7%, men 6.8%, women 12.6%) followed by SUI (overall 7.9%, men 5.1%, women 10.7%) and UUI (overall 4.3%, men 5.5%, women 3.2%). HRQoL, anxiety and depression scores were poor in all participants with UI; MUI was associated with the worst scores. Of the participants with UI, 46.9% visited HCPs for urinary symptoms (highest proportion [62.7%] among participants with MUI). Approximately 80% of participants with UI followed treatment, with prescribed medicine being the most common form (38.1%). Over half of participants (59.6%) were somewhat, very, or extremely satisfied with their treatment. MUI was associated with least satisfaction.

CONCLUSION

UI was associated with substantial problems, including an adverse impact on HRQoL. Medication failed to satisfy many individuals with UI. Efforts to educate the public and physicians about the impact of UI could improve diagnosis and treatment rates.

Lower urinary tract symptoms and health-related quality of life in Hong Kong primary care: a cross-sectional study

PURPOSE

To estimate the prevalence of lower urinary tract symptoms (LUTS) in primary care using the International Continence Society symptom definition; to evaluate the association between LUTS and health-related quality of life (HRQOL); and to evaluate the treatment gaps.

METHODS

Patients aged 40 and above were randomly recruited in a Hong Kong public primary care. Patients were asked (i) how often they experienced 18 individual LUTS during the past 4 weeks and (ii) whether they had sought treatments for their LUTS. The 12-Item Short Form Health Survey version 2 (SF-12 v2) and the modified Incontinence Impact Questionnaire-Short Form (IIQ-7) were used to measure HRQOL.

RESULTS

500 patients completed the survey. 75.8% of the patients had at least one LUTS "at least sometimes", with patients with a combination of storage, voiding, and post-micturition symptoms being the most prevalent (22.2%), followed by a combination of voiding and storage symptoms (14%). Only 14% of LUTS patients had sought treatments for their LUTS. LUTS was associated with a negative effect in all domains of the SF-12 v2 and IIQ-7 and patients with a combination of storage, voiding, and post-micturition symptoms had the worst HRQOL. Finally, having a combination of storage, voiding, and post-micturition symptoms and poorer HRQOL were factors associated with having sought treatments for LUTS.

CONCLUSION

A high prevalence of LUTS but low treatment-seeking rates implied possible unmet needs of LUTS patients in primary care, suggesting the potential for more active interventions to alleviate the negative impact of LUTS on patients' HRQOL.

A Survey on Voiding Complaints in Women Presenting at a Pelvic Care Center

Introduction

This article reports the prevalence of self-reported voiding complaints and the relationship with other pelvic floor and bladder dysfunctions (PFD).

Materials and Methods

Women with a variety of PFDs were referred to the pelvic care center. A standardised questionnaire on 6 PFDs was used. Frequencies of patient characteristics, PFDs and voiding complaints were calculated. Cross tabulation was used to investigate correlations and Pearson correlation coefficients to reveal the strength of the association between PFDs and self-reported voiding complaints.

Results

Data of 4470 women were included. Prevalence of (self-reported) voiding Lower urinary tract symptoms was 59.5%. Incomplete bladder emptying is the most prevalent voiding complaint. Self-reported voiding complaints are weakly correlated to age (r = 0.15, p < 0.01) and have moderate correlation with self-reported recurrent urinary tract infections (r = 0.34, p < 0.01), pelvic floor, bladder and bowel complaints. However, the correlation between the feeling of incomplete bladder emptying and the presence of recurrent urinary tract infections is weak (r = 0.06, p = 0.02).

Conclusion

Voiding complaints have a high prevalence and symptom bother in women visiting a pelvic care center.

A systematic review of the prevalence, risk factors, and impact of pelvic floor dysfunctions in nurses

AIM

To investigate the prevalence, risk factors, and impact of pelvic floor dysfunctions in female nurses.

DESIGN

A systematic review.

DATA SOURCES

Searches were conducted in the following five electronic databases: PubMed/Medline, LILACS, SCIELO, Cochrane Library, and CINAHL. There were no period or language limitations.

REVIEW METHODS

Data extraction and synthesis were conducted and the appraisal of the quality of the studies was performed using the Joanna Briggs Institute critical appraisal tool checklist for prevalence data.

RESULTS

A total of 15 studies were included. The symptoms investigated were lower urinary tract symptoms, including urinary incontinence and its subtypes, sexual dysfunctions, constipation, faecal incontinence, and dual incontinence. Overall, prevalence ranged from 9.9% to 89.6%. Associated factors related to occupational roles were lifting heavy weights and poor bladder habits. Quality of life was significantly worse for nurses with pelvic floor disorders.

CONCLUSION

Pelvic floor dysfunctions are very common among female nurses, considerably affecting their quality of life. Additional studies are needed to investigate the impact on work productivity, causal relationships with the occupation and the performance of prevention and treatment interventions directed toward this population.

Healthcare-seeking with bothersome lower urinary tract symptoms among men in the Danish population: the impact of lifestyle and socioeconomic status

Objective: (1) To identify possible factors of importance for reporting lower urinary tract symptoms (LUTS) among men and (2) to examine possible associations between socioeconomic status (SES), lifestyle factors, and likelihood of men contacting a general pracitioner (GP) regarding LUTS reported to be of concern or influencing daily activities (bothersome LUTS). Design: Nationwide population-based, cross-sectional survey. Data was collected in 2012. Setting: The general Danish population. Subjects: A total of 48,910 randomly selected men aged 20+. Main Outcome Measures: (1) Odds ratios for reporting LUTS by lifestyle and SES, and (2) Odds ratios for GP contact with bothersome LUTS by lifestyle and SES. Results: 23,240 men participated (49.8%). Nocturia was the most commonly experienced LUTS (49.8%). Incontinence was most often reported as bothersome (64.1%) and nocturia less often reported as bothersome (34.2%). Only about one third of the men reporting a bothersome LUTS contacted their GP. Odds for reporting LUTS significantly increased with increasing age, obesity, and lack of labor market affiliation. Increasing age and symptom burden significantly increased the odds for GP contact regarding bothersome LUTS. No overall associations were found between lifestyle, SES, and GP contact. Conclusion: Bothersome LUTS are common among Danish men. Concern and influence of LUTS on daily activities are important determinants of GP contact, yet only one in three bothersome LUTS are discussed with a GP. Advanced age and symptom burden were significantly associated with GP contact. Implications: Information on treatment options for LUTS might be desirable among Danish men regardless of SES and lifestyle. Key points Urological symptoms are common among men in the Danish population and are often managed without contacting healthcare professionals. Increasing age and symptom burden significantly increase the likelihood of consulting a general practitioner regarding bothersome urological symptoms Healthcare-seeking behavior with bothersome urological symptoms is not influenced by lifestyle or socioeconomic status among Danish men; Information about available, effective treatment options for urological symptoms might be desirable among men regardless of socioeconomic status and lifestyle.

Classification of nocturia by analyzing frequency volume chart and relations with international prostate symptom score in male patients with lower urinary tract symptoms in Korea

Purpose

To evaluate the categories of nocturia and relationships with the international prostate symptom score (IPSS) in Korean men with lower urinary tract symptoms (LUTS) accompanying nocturia.

Materials and Methods

Five hundred twenty-one male patients from five different hospitals, aged ≥18 years, were included. The 3-day frequency volume chart was used to identify nocturia. We also used the IPSS and The International Consultation on Incontinence Modular Questionnaire-Nocturia (ICIQ-N) module to verify the correlation between nocturia and quality of life.

Results

The distribution of nocturia events varied from 1 to 11, and 2 nocturia events were most prevalent (48.4%). Across the various numbers of nocturia events, the mean age, first sleep period, functional bladder capacity (FBC), nocturnal polyuria index (NPI), nocturia index (NI), predicted number of nightly voids, and nocturnal bladder capacity index (NBCI) were statistically different. Patients with pure nocturnal polyuria showed different night lengths, nocturnal urine volume, FBC, NPI, NI, and predicted number of nightly voids than those without nocturnal polyuria. Patients with severely reduced NBCI were prominent in the IPSS >20 group, and the degree of vexation increased with the number of nocturia events. The IPSS storage symptom score and ICIQ-N symptom score positively correlated with nocturia events.

Conclusions

In Korean male LUTS patients with nocturia, mixed-type nocturia was prominent, and patients with a high IPSS had a much poorer sleep quality than those with a low IPSS.

A current perspective on post-micturition dribble in males

Post-micturition dribble (PMD) is the involuntary loss of urine immediately after urination. It is classified as a post-micturition symptom and is more common in males. Traditionally, PMD has been considered to be part of the aging process, to have a low prevalence, and to be less bothersome than other lower urinary tract symptoms (LUTS). However, recent evidence suggests that PMD is not less common and does not elicit less discomfort compared with other LUTS in males. Also, PMD seems to commonly overlap with other LUTS and to be associated with erectile dysfunction. Although the etiology of PMD is not fully understood, a weakness or failure of the pelvic floor muscles is considered to be the most important factor. Although bulbar urethral massage and pelvic floor exercises are known to be effective in treating PMD, pharmacologic treatment has not yet been introduced. Recently, the possibility of treating PMD with phosphodiesterase-5 inhibitor has been suggested.

Comparison of Clinical and Physiological Parameters for Benign Prostatic Hyperplasia in Hypertensive and Normotensive Patients

Objective: To discover the correlation of clinical and physiological measures for benign prostatic hyperplasia in hypertensive and normotensive patients.

Methods: From September 2016 to October 2017, 435 patients were enrolled for further selection. The parameters evaluated for eligible patients included prostate volume, systolic blood pressure, diastolic blood pressure, international prostate symptom score, etc. Then the eligible patients were divided into two groups according to hypertension condition, and the clinical and physiological parameters were compared between two groups. The Pearson’s correlation coefficient was used to test the linearity of the relationships of these clinical and physiological components with prostate volume, total prostate specific antigen, and international prostate symptom score.

Results: Finally, 350 patients were involved in this study, including 117 with hypertension and 233 without hypertension. Weight, body mass index, systolic blood pressure, and diastolic blood pressure were significantly different between the hypertension and normotension groups. In the normotension group, there were positive correlations between weight, body mass index, age, and prostate volume; between fasting blood sugar, systolic blood pressure, diastolic blood pressure, and total prostate specific antigen; between fasting blood sugar and international prostate symptom score. In the hypertension group, there were positive correlations between age and total prostate specific antigen and international prostate symptom score; between weight and prostate volume; between systolic blood pressure and total prostate specific antigen.

Conclusion: This study indicated that there might be no significant association between hypertension and prostate volume.

Epidemiology of lower urinary tract symptoms in a cross-sectional, population-based study: The status in China

Lower urinary tract symptoms (LUTS) are reported to affect over half of all adults, and they are associated with significantly impaired quality of life (QOL). We performed a population-based study to evaluate the overall prevalence and impact of LUTS including overactive bladder (OAB) in adults aged ≥40 years in China.Adults aged ≥40 years were eligible to participate in this internet-based survey, provided that they had the ability to access the internet, to use a computer and to read the local language. The survey contained questions relating to International Continence Society (ICS) symptom definitions, the International Prostate Symptom Score (IPSS) and the Overactive Bladder Symptom Score (OABSS). The primary study objective was to determine the prevalence of LUTS using the ICS 2002 symptom definition.Among the 4136 respondents, 2080 (50.3%) were men and 1347 (32.6%) were aged ≥60 years. LUTS prevalence according to ICS criteria was 60.3% in men and 57.7% in women. All 3 ICS symptom groups (voiding, storage, and postmicturition) were present in 22.8% of women and 24.2% of men, making this the most common combination of ICS symptom groups. The most bothersome symptoms were terminal dribble and nocturia. According to IPSS scores, 32.9% of participants had at least moderate symptoms. The prevalence of OAB was 23.9%. The presence of LUTS-particularly all 3 ICS symptom groups-was associated with reduced sexual QOL in women, reduced satisfaction with erectile function in men, higher anxiety and depression scores, and reduced health-related QOL (physical health and mental health domains). The overall percentage of participants with LUTS visiting healthcare professionals for urinary symptoms was 38%.In conclusion, LUTS affect the majority of adults aged ≥40 years in China, and prevalence increases with increasing age. LUTS are associated with impaired QOL and mental health, but fewer than half of individuals in China with LUTS seek healthcare for their symptoms. There is therefore a need to improve awareness and treatment of the condition.ClinicalTrials.gov identifier: NCT02618421.

Association between parity and the risk for urinary incontinence in women: A meta-analysis of case-control and cohort studies

Urinary incontinence (UI) is a common complaint for adult female. Cross-sectional studies suggested parity may link with UI, but the association between them was not well-established. We conducted a meta-analysis to investigate the association between parity and UI.Medline and Embase were searched for eligible case-control and cohort studies about parity and UI. Two authors screened the literature and extracted the data independently. Odds ratio (OR) was used as the measure of the effect of parity on UI. We pooled the ORs of different number of parity by a random-effect model. Subgroup analysis was conducted by a subtype of UI. Sensitivity analysis was conducted to see whether the results were stable.Thirteen studies (8 cohorts and 5 case-controls) were included in our meta-analysis, with a total of 74,883 adult females. Our meta-analysis showed that compared with nulliparity, ORs of women with 1, 2, and ≥3 parity were 1.43 [95% confidence interval (95% CI): 0.90-2.28; I = 81.4%; n = 4], 1.50 (95% CI: 1.02-2.20; I = 82.5%; n = 4), and 1.58 (95% CI: 1.22-2.03; I = 70.1%; n = 7) compared with nulliparity. The OR for any multiparity to nulliparity was 1.68 (95% CI: 1.39-2.03; I = 0%; n = 4). Subgroup analysis showed that parity was associated with an increased risk of stress UI (OR = 2.32, 95% CI: 1.41-3.81; I = 0%; n = 2; 1 compared with null parity) but not urgent UI; However, the definition of parity varies across studies and studies defined parity as delivery times showed higher pooled OR than those not. Sensitivity analysis showed our results were stable.Current evidence suggested that parity was associated with an increased risk of overall and stress UI but not urgency UI, though the definition of parity may differ. Higher parity may have a more significant effect on overall UI. Standardized definition of parity is needed.

Novel Applications of OnabotulinumtoxinA in Lower Urinary Tract Dysfunction

OnabotulinumtoxinA (BoNT-A) was first used to treat neurogenic lower urinary tract dysfunction (LUTD) 30 years ago. Recently, application of BoNT-A in LUTD have become more common since the approval of intravesical BoNT-A injection for patients with both overactive bladders (OAB) and neurogenic detrusor overactivity (NDO) by regulatory agencies in many countries. Although unlicensed, BoNT-A has been recommended to treat patients with interstitial cystitis/bladder pain syndrome (IC/BPS) under different guidelines. BoNT-A delivery with liposome-encapsulation and gelation hydrogel intravesical instillation provided a potentially less invasive and more convenient form of application for patients with OAB or IC/BPS. BoNT-A injections into the urethral sphincter for spinal cord injury patients with detrusor-sphincter dyssynergia have been used for a long time. New evidence revealed that it could also be applied to patients with non-neurogenic dysfunctional voiding. Previous studies and meta-analyses suggest that BoNT-A injections for patients with benign prostate hyperplasia do not have a better therapeutic effect than placebo. However, new randomized and placebo-controlled trials revealed intraprostatic BoNT-A injection is superior to placebo in specific patients. A recent trial also showed intraprostatic BoNT-A injection could significantly reduce pain in patients with chronic prostatitis. Both careful selection of patients and prudent use of urodynamic evaluation results to confirm diagnoses are essential for successful outcomes of BoNT-A treatment for LUTD.

Age and gender stratified normative values for the International Prostate Symptom Score for adults aged 60 years and over

AIMS

To identify age and gender stratified normative values for the International Prostate Symptom Score (IPSS) for older community-living adults.

METHODS

Secondary analysis of data from a large cohort study produced norms presented as means, standard deviations, medians, ranges, and percentile scores. Non-parametric analyses were conducted to investigate the effect that demographic variables, smoking status and comorbidity had on the severity of Lower Urinary Tract Symptoms (LUTS) as measured by the IPSS.

RESULTS

Data from a total of 1103 survey respondents of community-living men and women aged between 60 and 99 years in the UK were analyzed. Normal ranges for the IPSS (as indicated by the median and 25th to 75th percentiles) were within the mild and low moderate LUTS categories of the IPSS, irrespective of age or gender. Age, gender, co-habitant status, and comorbidity had an effect on LUTS severity with comorbidity being the best predictor of IPSS scores.

CONCLUSION

This study has provided IPSS normative values for an older UK adult population aged 60-99 years. These normative values can be used by researchers and practitioners for peer comparison making the individual's IPSS score more meaningful. Presenting the normative values suggests that some mild symptoms may be described as "normal." It may also help to combat the perception that poor bladder health is an inevitable part of aging, as all norms in the current study fell into either mild or low moderate symptom categories.

Association of lower urinary tract symptoms and OAB severity with quality of life and mental health in China, Taiwan and South Korea: results from a cross-sectional, population-based study

Background

Lower urinary tract symptoms (LUTS) and overactive bladder (OAB) symptoms have a substantial effect on quality of life (QoL). We report QoL and mental health results from a LUTS prevalence study in three Asian countries.

Methods

A cross-sectional, population-representative, internet-based study among individuals aged ≥40 years in China, Taiwan and South Korea. Instruments included: Overactive Bladder Symptom Score (OABSS); International Prostate Symptom Score (IPSS); other International Continence Society (ICS) symptom questions; health-related QoL 12-item short-form (HRQoL-SF12v2); Work Limitations Questionnaire (WLQ); Hospital Anxiety and Depression Scale (HADS). Presence of LUTS was determined according to ICS criteria, with three symptom groups (storage, voiding and post-micturition). Post-stratification weighting matched the age and sex population distribution per country. Initial data analyses were based on descriptive statistics. Significance testing undertaken post hoc included: independent-samples t-test (differences in HRQoL between sexes and between individuals with/without LUTS; relationship between HRQoL score and OABSS; differences in HADS anxiety and depression scores between individuals with/without LUTS; association between HADS anxiety/depression scores and OABSS), chi-square test (association between LUTS prevalence and workplace productivity) and analysis of variance (differences in HRQoL score and in HADS anxiety/depression scores between individuals with different symptom groups, association between HADS anxiety/depression scores and IPSS).

Results

In total, 8284 participants were included. HRQoL scores were significantly worse (p < 0.001) among individuals with versus without LUTS (ICS criteria): mean physical health domain scores were 61.1 (standard deviation [SD], 20.1) and 76.7 (17.0), respectively; corresponding mental health domain scores were 34.8 (12.7) and 43.7 (10.7). Workplace productivity was best among individuals without LUTS (difficulties reported by 2–3% of individuals), and worst in those with all three ICS symptom groups (difficulties reported by 29–38% of individuals; p = 0.001). Mean HADS scores showed significantly worse (p < 0.001) levels of anxiety and depression among individuals with versus without LUTS: anxiety, 6.5 (SD, 3.7) and 4.0 (3.3); corresponding mean depression scores were 6.8 (4.3) and 4.2 (3.6). Increasing OAB severity was also associated with decreasing HRQoL physical and mental health scores.

Conclusion

LUTS and increasing OAB severity are both associated with impaired QoL, reduced workplace productivity, and increased tendency towards anxiety and depression. These results highlight the need to ensure that individuals with LUTS receive appropriate, effective treatment.

Trial registration

ClinicalTrials.gov identifier: NCT02618421, registered 26 November 2015 (retrospectively registered).

Prevalence of Lower Urinary Tract Symptoms in China, Taiwan, and South Korea: Results from a Cross-Sectional, Population-Based Study

Introduction

Few population-based data are available evaluating the prevalence of lower urinary tract symptoms (LUTS) in Asia. The objective of our study was to determine LUTS prevalence in China, Taiwan, and South Korea using International Continence Society (ICS) 2002 criteria.

Methods

An Internet-based self-administered survey among individuals aged at least 40 years with the ability to use a computer and to read the local language. Survey questions included ICS symptom definitions and the international prostate symptom score (IPSS). Data analysis was based on descriptive statistics and post hoc significance testing.

Results

There were 8284 participants, of whom 51% were women and 34% were aged at least 60 years. LUTS prevalence was slightly higher in men than women (62.8% vs. 59.6%; p = 0.004), increasing significantly with age (p = 0.001). All three ICS symptom groups (voiding, storage, and post-micturition) were present in 35% of individuals with LUTS. Symptoms with the highest overall prevalence were nocturia, frequency, incomplete emptying, and terminal dribble. The most bothersome symptoms were terminal dribble, nocturia, and urgency. According to IPSS scores, 87% of participants had at least mild symptoms; 43% of those aged over 60 years had moderate/severe symptoms. The percentage of participants with any LUTS who had visited healthcare professionals because of urinary symptoms was 26%, rising to 45% amongst individuals with all three symptom groups (p = 0.001 vs. other ICS symptom groups).

Conclusions

LUTS are highly prevalent in men and women aged at least 40 years who participated in this study in China, Taiwan, and South Korea and increases with increasing age. A minority of individuals with LUTS seek healthcare and our results suggest an increased patient awareness of LUTS is required.

Funding

Astellas Pharma Singapore Pte. Ltd.

Trial registration

ClinicalTrials.gov identifier, NCT02618421.

Electronic supplementary material

The online version of this article (doi:10.1007/s12325-017-0577-9) contains supplementary material, which is available to authorized users.

Prevalence and Risk Factors of Urinary Incontinence and Overactive Bladder in Japanese Women

OBJECTIVES

The prevalence of storage symptoms, including stress urinary incontinence (SUI) and overactive bladder (OAB), is high in women worldwide. In Japan, there have been few large-scale epidemiological surveys of lower urinary tract symptoms (LUTS), and the risk factors for these symptoms are unclear. The aim of this study was to explore the prevalence and risk factors of storage symptoms in Japanese women.

METHODS

A cross-sectional Internet survey was conducted in Japan. Five thousand women aged 20-79 years were selected to answer demographic questionnaires, Japanese version of International Consultation on Incontinence Questionnaire-Short Form, and the Overactive Bladder Symptom Score (OABSS) pertaining to their symptoms in the previous month. Descriptive statistics were used to evaluate the prevalence of storage symptoms. Logistic regression analysis was performed to determine risk factors for SUI and OAB.

RESULTS

The answers from 4804 women (average age, 40.4 years) were analyzed. The prevalence of SUI was 16.7% (SUI, 13.0%; mixed urinary incontinence, 3.7%). The prevalence of OAB diagnosed on OABSS was 8.1%. The prevalence of SUI and OAB symptoms increased with age, and 68.0% of women had one or more storage symptoms. Age ≥40 years, body mass index ≥25 kg/m² , and constipation were common risk factors for SUI and OAB. Childbirth was an additional risk factor for SUI.

CONCLUSIONS

The prevalence of storage symptoms in Japanese women was high, and risk factors associated with these symptoms were similar to those reported in studies in other countries.

A possible relationship between serum sex hormones and benign prostatic hyperplasia/lower urinary tract symptoms in men who underwent transurethral prostate resection

In this study, we examined the relationship between sex hormone levels and lower urinary tract symptoms (LUTS) in men with benign prostatic hyperplasia (BPH) who underwent transurethral surgery. The study was conducted in 158 patients who came to our hospital for surgery. Clinical conditions were assessed by body mass index (BMI), digital rectal examination, International Prostate Symptom Score (IPSS) and transrectal ultrasound (TRUS). The levels of sex hormones (including total testosterone (TT), estradiol (E₂), progesterone (P), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and prolactin (PRL)) and prostate-specific antigen (PSA) were reviewed. Correlations were determined through statistical analysis. The mean age was 72.06 ± 8.68 years. The total IPSS was significantly associated with the TT level (r = −0.21, P= 0.01). Other sex hormone levels were not correlated with total IPSS. However, some ratios such as E₂/TT (r = 0.23, P= 0.00) and FSH/LH (r = −0.17, P = 0.04) were associated with total IPSS. Further analysis showed that the nocturia was associated with age (r = 0.16, P= 0.04), BMI (r = 0.21, P = 0.01), and TT (r = −0.19, P= 0.02). Moreover, we divided the patients into two subgroups based on IPSS severity (<20 or ≥20). The mean TT level was in the normal range, but it was significantly related to the presence of severe LUTS. In summary, our study has shown that the severity of LUTS is associated with TT, E₂/TT and FSH/LH in men who underwent prostate surgery. Increasing nocturia was observed in lower testosterone patients. Additional larger studies are needed to elucidate the potential mechanisms.

Personal goals and expectations of OAB patients in the UK

INTRODUCTION

In clinical practice and in research patient-centred outcomes are often utilised to help improve communication between patients and clinicians and to help manage expectations from treatment. However, many of these goals are generic and do not adequately capture the details of day to day life that bother patients the most and that they hope will improve with therapy. This study aimed to understand what are the goals of patients with overactive bladder symptoms in the UK who were taking part in a clinical trial and to assess goal achievement.

METHODS

This was a qualitative analysis of the patients goals recorded using the Self-Assessment Goal Achievement (SAGA) Questionnaire during the UK study assessing flexible dose fesoterodine in adults (SAFINA) trial. Free text patient goals were completed at baseline and an assessment of achievement was performed at the end of treatment. Grounded theory was used to develop themes and sub themes.

RESULTS

Three hundred and thirty-one patients completed the trial and 1137 open ended goals were set. Six themes emerged from the data including, OAB, other LUTS and finishing the task in hand with multiple subthemes noted.

CONCLUSIONS

By assessing and understanding what is important to the patient, it may help to tailor patient care and treatment and improve patient satisfaction.

Advancing a Comprehensive Approach to the Study of Lower Urinary Tract Symptoms

PURPOSE

Lower urinary tract symptoms are common in the United States population, leading to significant economic, quality of life and public health issues. The burden will increase as the population ages, and risk factors for lower urinary tract symptoms, including diabetes and obesity, remain highly prevalent. Improving clinical management and establishing the knowledge base to prevent lower urinary tract symptoms will require a comprehensive research approach that examines factors beyond the lower urinary tract. While the study of extra-lower urinary tract factors has increased recently, current urological research does not systematically account for the broad set of potential contributing factors spanning biological, behavioral, psychological/executive function and sociocultural factors. A comprehensive assessment of potential contributors to risk, treatment response and progression is necessary to reduce the burden of this condition in the United States.

MATERIALS AND METHODS

We considered challenges to continuing the predominantly lower urinary tract dysfunction centric approach that has dominated previous research of lower urinary tract symptoms.

RESULTS

We developed a new, comprehensive framework for urology research that includes a broader set of potential factors contributing to lower urinary tract symptoms. This framework aims to broaden research to consider a comprehensive set of potential contributing factors and to engage a broad range of researchers in the investigation of as many extra-lower urinary tract factors as possible, with the goal of improving clinical care and prevention.

CONCLUSIONS

We propose a new framework for future urology research, which should help to reduce the medical and economic burden of lower urinary tract symptoms in the United States population.

Association of Circulating 25(OH)D and Lower Urinary Tract Symptoms: A Four-Year Prospective Study among Elderly Chinese Men

The role of vitamin D in relation to lower urinary tract symptoms (LUTS) remains inconclusive. This four-year longitudinal study aims to explore the association of circulating 25(OH)D and LUTS in elderly Chinese men. Two thousand Chinese men aged 65 and older were recruited from a local community, of which 1998 (99.9%) at baseline and 1564 (78.2%) at four-year follow-up reported data on LUTS, and 988 of the randomly chosen subpopulation were assayed for serum 25(OH)D by radioimmunoassay at baseline. LUTS were evaluated by a validated International Prostate Symptoms Scale (IPSS). Data on demographic characteristics, lifestyle factors, health, and medications were collected. Serum parathyroid and sex steroid hormones and genotypes of vitamin D receptors were assayed. The association of serum 25(OH)D and LUTS was examined by using multivariable regression models. Serum 25(OH)D was not significantly associated with the changes of IPSS or the risk of LUTS in overall participants. However, among men with 25(OH)D ≤ 60 nmol/L, each 10 nmol/L increase of 25(OH)D over 0 nmol/L was significantly associated with 1.3 lower points of IPSS or a 51.6% decreased risk for moderate/severe LUTS four years later. Adjustment for serum androstenedione (p = 0.019) and dehydropiandrosterone (p = 0.037) attenuated the associations. Our study suggested that among individuals with low vitamin D status, the increase of the 25(OH)D level may be associated with a lowered risk of LUTS.

Botulinum Toxin A and Lower Urinary Tract Dysfunction: Pathophysiology and Mechanisms of Action

The use of onabotulinumtoxinA (BoNT-A) for the treatment of lower urinary tract diseases (LUTD) has increased markedly in recent years. The indications for BoNT-A treatment of LUTD now include neurogenic or idiopathic detrusor overactivity, interstitial cystitis/bladder pain syndrome and voiding dysfunction. The mechanisms of BoNT-A action on LUTDs affect many different aspects. Traditionally, the effects of BoNT-A were believed to be attributable to inhibition of acetylcholine release from the presynaptic efferent nerves at the neuromuscular junctions in the detrusor or urethral sphincter. BoNT-A injection in the bladder also regulated sensory nerve function by blocking neurotransmitter release and reducing receptor expression in the urothelium. In addition, recent studies revealed an anti-inflammatory effect for BoNT-A. Substance P and nerve growth factor in the urine and bladder tissue decreased after BoNT-A injection. Mast cell activation in the bladder also decreased. BoNT-A-induced improvement of urothelium function plays an important mitigating role in bladder dysfunction. Vascular endothelial growth factor expression in urothelium decreased after BoNT-A injection, as did apoptosis. Studies also revealed increased apoptosis in the prostate after BoNT-A injection. Although BoNT-A injection has been widely used to treat different LUTDs refractory to conventional treatment, currently, onabotulinumtoxinA has been proven effective only on urinary incontinence due to IDO and NDO in several large-scale clinical trials. The effects of onabotulinumtoxinA on other LUTDs such as interstitial cystitis, benign prostatic hyperplasia, dysfunctional voiding or detrusor sphincter dyssynergia have not been well demonstrated.

Lower urinary tract symptoms, benign prostatic hyperplasia and metabolic syndrome

Epidemiological studies have shown that age is the principal unmodifiable risk factor of lower urinary tract symptoms (LUTS). Until the past decade, the process of lower urinary tract ageing was, therefore, considered unmodifiable - as ageing per se. However, the traditional dogma that BPH-related LUTS (BPH-LUTS) is an immutable consequence of old age is no longer acceptable. Results from multiple preclinical and clinical studies indicate that several modifiable, age-related metabolic aberrations (metabolic syndrome, obesity, dyslipidaemia, diabetes) are important determinants in both the development and the progression of BPH-LUTS. Metabolic syndrome and its related comorbidities, such as sex steroid alterations and low-grade inflammation, have been related to BPH-LUTS development and progression. With the correct treatment and recommended lifestyle changes, many individuals with metabolic syndrome might be able to prevent or delay the onset of metabolic-syndrome-related complications; however, whether promoting healthier lifestyles can really alter a man's propensity to develop BPH-LUTS remains to be clarified.

Relationship between urodynamic patterns and lower urinary tract symptoms in Chinese women with a non-neurogenic bladder

Objective

To investigate the urodynamic study (UDS) patterns, obstruction status, continence status, and their correlations among neurologically intact women with lower urinary tract symptoms (LUTS) through an epidemiological and logistic regression analyses.

Methods

We retrospectively analyzed the UDS data of 3265 neurologically intact women with LUTS (2002–2014). Five UDS patterns were identified: normo-active detrusor/sphincter (NA, or DSI, detrusor/sphincter intact), idiopathic detrusor overactivity (IDO), idiopathic sphincter overactivity (ISO), IDO + ISO, and detrusor underactivity (DUA). Analyses of UDS pattern distribution and stratification were performed (based on a modification of the European Urological Association-Madersbacher classification system), and their correlations with bladder outlet obstruction (BOO) and stress urinary incontinence (SUI) status were evaluated via logistic regression analysis.

Results

NA, IDO, IDO + ISO, ISO, and DUA were noted in 927 (28.4%), 678 (20.8%), 320 (9.8%), 689 (21.1%), and 651 (19.9%) cases, respectively. Moreover, storage, storage + voiding, and voiding symptoms were noted in 62.4%, 21.1%, and 16.5% cases, respectively, whereas BOO and SUI were observed in 12.1% and 29.0% cases, respectively. The risk factors for BOO included NA, IDO, ISO, and IDO + ISO, whereas the protective factors against BOO included storage symptoms, SUI, storage + voiding symptoms, and complaint duration within 1–12 months. NA was the only risk factor for SUI, whereas BOO, storage + voiding symptoms, IDO, and storage symptoms were protective factors for SUI.

Conclusion

Five UDS patterns were identified among neurologically intact women with LUTS. Functional abnormalities of the detrusor and/or sphincter were the main causes of LUTS, and were correlated with the BOO or SUI status. Thus, the UDS pattern can provide additional information regarding the risk factors for BOO or SUI status, as compared to symptomatic typing.

Effect of Age, Educational Status, Parity and BMI on Development of Urinary Incontinence - a Cross Sectional Study in Saudi Population

BACKGROUND

The research article looks at the background of women with urinary incontinence and exposed to different demographic factors. Women who had urinary incontinence and women without urinary incontinence were compared with regards to their demographic features and risk of development of urinary problems. These risk factors can either cause short term or temporary urinary incontinence or they can cause long term or permanent urinary incontinence. This article explores the association of age, educational status, body mass index (BMI) and parity on the development of urinary incontinence.

AIM OF STUDY

This study aimed at conducting an analysis into the risk factors that are related to urinary incontinence.

RESULTS AND ANALYSIS

Z-tests were conducted for every demographic factor and the results are then discussed comprehensively citing various studies that have been conducted before. Analysis shows that age and BMI increase chances of urinary infection and consequently urinary incontinence. Women of lower educational levels record more cases of urinary incontinence due to lack of general information about the condition. Women with higher parity levels also record more cases of urinary infections and subsequently urinary incontinence.

CONCLUSION

From the analysis above, it can be seen that these factors usually play great roles in the existence and absence of urinary incontinence especially in women in Saudi Arabia. Most important is that, its prevention is mostly by use of the risk factors mentioned here in the research. This will usually involve observing a given risk factor to a state that makes it unfavorable for urinary incontinence to occur.