Gender differences in bladder control: from babies to elderly

The correlation between academic stress, overactive bladder syndrome (OAB) and quality of life among healthy university students: A cross-sectional study

INTRODUCTION

This study aims to assess the presence of overactive bladder syndrome (OAB), academic stress, and their impact on quality of life (QoL) of healthy university students.

METHODS

A cross-sectional study recruited university students from different academic streams, between January 2021 to December 2021. Demographics, overactive bladder-validated 8 questionnaire (OAB-V8), International Consultation on Incontinence Questionnaire Overactive Bladder Module (ICIQ-OAB) questionnaire, and Perception of Academic Stress (PAS) scale were collected. The correlation between the variables was assessed using the Social Sciences Statistical Package (SPSS) version 21.

RESULTS

Three hundred and 89 people met the inclusion criteria. There were 241 (62%) females, and 248 (63.8%) of the students were under the age of 22. Four academic streams were included: Engineering 96 (24.7%), Humanities 121 (31.1%), Medicine 85 (21.8%) and Nursing 87 (22.4%). OAB was found among 103 (26%) students. The mean OAB-V8 score was 5.8 ± 6.6. The mean PAS scale was 53.9 ± 9.4. The mean ICIQ-OAB score was 1.5 (0-9). Male gender 62 (60%), smoking 42 (40.8%), academic stream (Humanity 40 (38.8%)) and year (third and fourth-year students 34 (33%) and 33 (32%), respectively) have a statistically significant positive correlation with OAB (p < 0.001). Humanity stream (mean rank 169.2) and junior students (first and second years with mean rank of 174 and 177), respectively, had high level of academic stress and low PAS scale. There is a weak but statistically significant inverse correlation between OAB and the PAS scale (r = -0.211) (p < 0.001).

CONCLUSION

OAB is prevalent among healthy university students and is directly related to academic stress. Both OAB and academic stress have impact on quality of life. We hope this study will help to raise awareness of OAB among university students to early identify and treat such a condition, avoiding unnecessary bother among healthy university students.

Nursing students' metaphorical perceptions of sexuality in older people: An example of metaphor analysis

PURPOSE

This study aims to describe the metaphorical perceptions of nursing students towards sexuality in older people through metaphor.

BACKGROUND

Age-related changes and health problems can adversely affect sexual functions. Sexuality is a basic physiological need that continues throughout life and it is important to eliminate the problems related to sexual life that occur in old age. Determining the knowledge and attitudes of nursing students, who will be health professionals of the future, towards sexuality in older people can make a significant contribution to providing holistic health care to older individuals. Therefore, it is important to determine the knowledge and attitudes of nursing students about the sexuality of older people to improve their professional competence.

DESIGN

This study was conducted with metaphor analysis technique based on phenomenological method.

METHOD

This study was conducted in a total of 222 nursing students. The study data were collected between January and February 2022 with a questionnaire form prepared by the researchers. In the first part of the questionnaire, questions about socio-demographic characteristics were included, and in the second part, the sentence "sexuality in older people is like., because." was included to determine the metaphors developed by the students about sexuality in older people. These handwritten writings of the students were used as the main data source in this study. Content analysis was used to evaluate the metaphors.

RESULTS

In this study, students produced a total of 222 valid metaphors related to the concept of sexuality in older people. The metaphors revealing the students' perceptions of the concept of sexuality in older people were grouped under 5 categories; "Category related to slowing down and regression", "Category related to need or normal", "Category related to not possible", "Category related to the feeling of love, compassion and friendship" and "Unnecessary, unimportant or should not be category". In the study, it was determined that the category in which the most metaphors were generated was "related to slowing down and regression".

CONCLUSION

In the study, nursing students provided metaphors containing both positive and negative concepts related to sexuality in older people. However, most the metaphors generated contain negative concepts. To support nursing students' positive attitudes towards sexuality in older people, to change their negative attitudes, and to increase their knowledge and awareness, it is proposed to incorporate courses on sexuality in older people into the nursing curriculum and to include sexuality in older people in courses on sexuality.

Sex differences in lower urinary tract symptoms of Korean workers: Prevalence, mental health, and associated factors

Objectives

Lower urinary tract symptoms (LUTS) in workers can aggravate mental health, lower quality of life, and decrease work productivity. We aimed to examine the prevalence of LUTS, sex-related differences in LUTS, mental health of workers with LUTS, and factors associated with LUTS in Korean workers.

Methods

This cross-sectional study included 192 workers from D city and the Gyeongbuk province of South Korea. LUTS were measured using self-reported questionnaires, and mental health was assessed for anxiety, depression, and perceived stress. Differences in characteristics between workers with and without LUTS were analyzed using the chi-square test or independent t-test. Multiple logistic regression analysis was performed to identify factors associated with LUTS.

Results

Urinary urgency (UU) was significantly more prevalent in men than in women; however, stress urinary incontinence (SUI) was more prevalent in women than in men. The average anxiety and perceived stress scores were significantly higher in men with UU than in men without UU. Men with hypertension or nocturia were more likely to have UU than those without hypertension or nocturia. The anxiety scores significantly increased the odds of UU in men. Advanced age significantly increased the odds of SUI in women. Blue-collar female workers were more likely to develop SUI than their white-collar counterparts.

Conclusions

Our study highlighted the prevalence and burden of LUTS among workers. Occupational health providers need to regularly assess workers' bladder storage problems and provide manageable interventions for UU in men and SUI in women.

Temporomandibular disorders and autonomic dysfunction: Exploring the possible link between the two using a questionnaire survey

OBJECTIVE

To assess autonomic function and investigate factors related to its dysfunction in patients with temporomandibular disorders (TMD) from a biopsychosocial perspective.

METHODS

Seventy-six patients with TMD were investigated by clinical examination and questionnaires concerning biopsychosocial aspects (The Brief Pain Inventory, the Pain Catastrophizing Scale, and the Symptom Checklist-90-Revised) and autonomic dysfunction (The COMPASS 31).

RESULTS

Seventy-one patients were included in the study. The result of multiple regression analysis showed that four variables (sex, depression, age, and pain interference) were significantly associated with autonomic dysfunction. Increased orthostatic intolerance and bladder dysfunction were observed in females and males, respectively. Younger age was associated with higher orthostatic intolerance, while higher pain interference was associated with higher secretomotor dysfunction and bladder dysfunction. Further, higher depression scores were linked to higher scores in the gastrointestinal subdomain.

CONCLUSION

Autonomic dysfunction may affect TMD-related pain in the context of a biopsychosocial perspective.

Vancouver Symptom Score for Dysfunctional Elimination Syndrome: Hindi translation and validation

BACKGROUND

Bladder and bowel dysfunction (BBD) is a common problem in school-aged children and is evaluated using questionnaires. Among available questionnaires, "Vancouver Symptom Score for Dysfunctional Elimination Syndrome" (VSSDES) is considered superior in validity and reliability. We translated VSSDES into Hindi and performed validity and reliability testing of Hindi-VSSDES in children aged 4-16 years with lower urinary tract dysfunction (LUTD).

METHODS

In this cross-sectional study, we followed Consensus-based Standards for the selection of health Measurement Instruments recommendation to develop Hindi-VSSDES. Forward-translation-harmonization-back-translation-expert committee review-prefinal version sequence of translation was followed by cognitive debriefing. One hundred and sixteen children with symptoms suggestive of LUTD and 106 healthy controls were recruited. Construct validity of Hindi-VSSDES was assessed via structural validity (factor analysis) and hypotheses testing. In addition, test-retest reliability and internal-consistency reliability were assessed.

RESULTS

Hindi-VSSDES had acceptable face validity. Factor analysis identified four factors representing three domains. All a priori hypotheses were met. The questionnaire displayed excellent convergent validity and discriminative ability (area under receiver operating characteristic curve 0.83). The cutoff scores for screening and diagnosis were 7 and 11, respectively. Scores were comparable whether children self-filled the questionnaire or parents were proxy. Scores in girls were significantly higher. It had an excellent test-retest reliability (intraclass correlation coefficient = 0.96) and Cronbach's ɑ was 0.62. The smallest detectable change was 4.1 points. Median time to complete the questionnaire was 7 min and majority (91%) rated it as easy.

CONCLUSIONS

Hindi-VSSDES is the first validated and reliable Hindi questionnaire for children with BBD. Clinimetric properties of responsiveness and interpretability are yet to be tested.

Efficacy of frankincense‐based herbal product in urinary incontinence: A randomized, double‐blind, placebo‐ and active‐controlled clinical trial

Urinary incontinence is a silent epidemic that has a serious impact on a person's quality of life (QOL). This study aimed to evaluate the efficacy of frankincense-based herbal product (FHP) in urinary incontinence compared with placebo and solifenacin. In this randomized, double-blind clinical trial, 120 postmenopausal women with mixed urinary incontinence were randomized to one of the three groups of FHP, placebo, and standard treatment (solifenacin). Frequency, amount of leakage, and score of urinary incontinence as well as the QOL were measured at the end of the second and fourth weeks and 2 weeks after the interruption of the treatment. The ICIQ-UI SF and I-QOL questionnaires were used for the measurements. Mean frequency of urinary incontinence and amount of leakage significantly decreased in the FHP and solifenacin groups in the fourth week compared to the placebo group. In addition, 2 weeks after treatment completion, the effects of the FHP were significant compared to the solifenacin group. Due to the effect of FHP on improving the QOL and also the prolonged effect of this drug, the use of FHP in urinary incontinence, as a complementary treatment could be suggested.

Exploring concomitant pelvic floor symptoms in community-dwelling females and males

OBJECTIVES

Researchers and clinicians tend to focus on one pelvic floor symptom (PFS) at the time. However, the pelvic floor acts as one functional unit, increasing the likelihood of concurrent PFS in patients with pelvic floor dysfunction. There is also a paucity of literature on the prevalence of concomitant PFS, especially in males. Therefore, we explored the occurrence of concomitant PFS in community-dwelling males and females.

MATERIALS AND METHODS

This prospective observational population-based cohort study included males and females aged ≥16 years from a single Dutch municipality. Participants completed validated questionnaires on lower urinary tract symptoms (LUTS), defecation problems, sexual dysfunction, pelvic pain, and pelvic organ prolapse. Medical general practitioner records were examined. Furthermore, a randomly selected group of non-responders aged &lt;80 years received a short questionnaire, to study response bias.

RESULTS

We invited 11 724 people, among which 839 females and 566 males completed the questionnaires. Of the female participants, 286 (34.1%) reported no PFS, and 251 (29.9%) reported two or more PFS. The most prevalent PFS clusters in females were sexual dysfunction and pelvic pain, sexual dysfunction and defecation problems, LUTS and defecation problems, and LUTS, defecation problems, and pelvic pain. Of the male participants, 212 (37.5%) reported no PFS, and 191 (33.7%) reported two or more PFS. The most prevalent clusters in males were sexual dysfunction and LUTS, defecation problems and LUTS, and sexual dysfunction, LUTS, and defecation problems.

CONCLUSION

A considerable overlap existed between PFS, with differences in PFS clusters between females and males. Of note, females reported pelvic pain more than males. We conclude that healthcare providers should address all PFS in males and females.

Sex and gender differences in chronic kidney disease and access to care around the globe

The difference between sex, the biological construct, and gender, the social construct, may be most evident in settings of vulnerability. Globally, chronic kidney disease is more prevalent among women, but the prevalence of end-stage kidney failure, and especially receipt of kidney replacement therapy, is higher in men. These differences likely reflect a combination of physiological and social/structural risk factors that independently modulate kidney disease and/or its progression. The distribution of the most common risk factors such as hypertension and obesity differ between men and women and may impact disease risk differentially. Social and structural gender-related inequities remain stark across the globe. More women live in poverty, receive less education, and are more dependent on others for health care decision making, but men may have a higher risk of injury, occupational exposures, and less access to screening, prevention, and primary care. In this article, we explore how social determinants of health affect kidney disease risk and access to care differentially across genders, and differently across the globe. We also describe specific challenges experienced by boys and girls with kidney disease, how culture and geography may impact kidney care in places where resources are particularly limited such as sub-Saharan Africa, and give examples of social and structural circumstances that place young men and women at high risk of kidney disease in Mexico and Central America, illustrated by case vignettes. The coronavirus disease-2019 pandemic has raised awareness of pervasive gender-based inequities within all societies. This applies to kidney disease and is not new. The nephrology community must add its voice to the calls for action, for a more just society overall, and for the recognition of the roles of sex and gender as modulators of kidney disease risk and access to care.

Vegetable intake and the risk of bladder cancer in the BLadder Cancer Epidemiology and Nutritional Determinants (BLEND) international study

BACKGROUND

Although a potential inverse association between vegetable intake and bladder cancer risk has been reported, epidemiological evidence is inconsistent. This research aimed to elucidate the association between vegetable intake and bladder cancer risk by conducting a pooled analysis of data from prospective cohort studies.

METHODS

Vegetable intake in relation to bladder cancer risk was examined by pooling individual-level data from 13 cohort studies, comprising 3203 cases among a total of 555,685 participants. Pooled multivariate hazard ratios (HRs), with corresponding 95% confidence intervals (CIs), were estimated using Cox proportional hazards regression models stratified by cohort for intakes of total vegetable, vegetable subtypes (i.e. non-starchy, starchy, green leafy and cruciferous vegetables) and individual vegetable types. In addition, a diet diversity score was used to assess the association of the varied types of vegetable intake on bladder cancer risk.

RESULTS

The association between vegetable intake and bladder cancer risk differed by sex (P-interaction = 0.011) and smoking status (P-interaction = 0.038); therefore, analyses were stratified by sex and smoking status. With adjustment of age, sex, smoking, energy intake, ethnicity and other potential dietary factors, we found that higher intake of total and non-starchy vegetables were inversely associated with the risk of bladder cancer among women (comparing the highest with lowest intake tertile: HR = 0.79, 95% CI = 0.64-0.98, P = 0.037 for trend, HR per 1 SD increment = 0.89, 95% CI = 0.81-0.99; HR = 0.78, 95% CI = 0.63-0.97, P = 0.034 for trend, HR per 1 SD increment = 0.88, 95% CI = 0.79-0.98, respectively). However, no evidence of association was observed among men, and the intake of vegetable was not found to be associated with bladder cancer when stratified by smoking status. Moreover, we found no evidence of association for diet diversity with bladder cancer risk.

CONCLUSION

Higher intakes of total and non-starchy vegetable are associated with reduced risk of bladder cancer for women. Further studies are needed to clarify whether these results reflect causal processes and potential underlying mechanisms.

Bladder and bowel control in a population-based sample: Associations to quality of life and behavioral problems of 4-6-year-old children participating in the German Health Interview and Examination Survey (KiGGS)

BACKGROUND

Prevalence rates for psychiatric comorbidities are high in incontinent children. We analyzed data from the KiGGS survey in order to assess the rate of preschool children with delayed or regular continence, the mean age of gaining continence, psychiatric problems, and quality of life in a nation-wide, representative sample.

METHODS

Parental questionnaire data of 3875 preschool children (4-6 years) were analyzed. Percentages of children with daytime, nighttime, and complete continence, and mean ages of gaining continence were calculated. Psychological and behavioral problems (SDQ), as well as Quality of life (KINDL-R), were assessed.

RESULTS

16.9% showed delayed gaining of continence. Percentages of children with nighttime bladder continence were lower for boys (76.3%) than for girls (80.6%), and lower for children without (78.2%) than those with a migration status (79.2%). Complete continence was gained by more girls (83.9%) than boys (78.2%), more children from the former East Germany (82.4%) than former West Germany (81.1%), and by more migrants (82.7%) than nonmigrants (81.9%). Girls, children living in the former East of Germany, and migrants achieved continence consistently at an earlier age. Children with incontinence or continence ≥4 years showed significantly more psychological problems, less prosocial behavior and low quality of life.

CONCLUSION

The age at gaining continence is moderated by gender, German region, and migration status. Delayed achievement of continence is associated with more psychological problems and a lower quality of life. The importance of effective treatment of incontinence is emphasized by the results of this study.

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.

A Novel Alternative in the Treatment of Detrusor Overactivity? In Vivo Activity of O-1602, the Newly Synthesized Agonist of GPR55 and GPR18 Cannabinoid Receptors

The aim of the research was to assess the impact of O-1602—novel GPR55 and GPR18 agonist—in the rat model of detrusor overactivity (DO). Additionally, its effect on the level of specific biomarkers was examined. To stimulate DO, 0.75% retinyl acetate (RA) was administered to female rats’ bladders. O-1602, at a single dose of 0.25 mg/kg, was injected intra-arterially during conscious cystometry. Furthermore, heart rate, blood pressure, and urine production were monitored for 24 h, and the impact of O-1602 on the levels of specific biomarkers was evaluated. An exposure of the urothelium to RA changed cystometric parameters and enhanced the biomarker levels. O-1602 did not affect any of the examined cystometric parameters or levels of biomarkers in control rats. However, the O-1602 injection into animals with RA-induced DO ameliorated the symptoms of DO and caused a reversal in the described changes in the concentration of CGRP, OCT₃, BDNF, and NGF to the levels observed in the control, while the values of ERK1/2 and VAChT were significantly lowered compared with the RA-induced DO group, but were still statistically higher than in the control. O-1602 can improve DO, and may serve as a promising novel substance for the pharmacotherapy of bladder diseases.

Fecal and urinary incontinence are major problems associated with rectal cancer

BACKGROUND

The goal of this retrospective cohort study was to analyze the incidence of urinary incontinence (UI) and fecal incontinence (FI) within 5 years of diagnosis in patients with rectal carcinoma (RC) and within 5 years of a randomly selected visit date in non-cancer controls followed in general practices in Germany.

METHODS

Patients who had received an initial RC diagnosis at one of 1262 general practices in Germany between January 2008 and December 2017 were included in this study (index date). Patients without cancer were matched (1:1) to RC patients by sex, age, index year, and practice. The main outcome of the study was the incidence of UI and FI within 5 years of RC diagnosis.

RESULTS

The study included 3249 individuals with RC and 3249 individuals without cancer (mean age 66.5 years, 57.3% males). Within 5 years of the index date, 8.6% of RC patients and 1.3% of patients without cancer received a FI diagnosis, and 16.7% of RC patients and 5.3% of patients without cancer received a UI diagnosis. Overall, RC was positively associated with both FI (hazard ratio (HR) 8.39, 95% CI 5.50-12.81) and UI (HR 3.59, 95% CI 2.91-4.44). These findings were corroborated in the different age subgroups.

CONCLUSION

In accordance with the literature, we confirmed that RC is significantly associated with fecal and urinary incontinence. However, it appears that the awareness of this fact needs to be improved among general practitioners since our data show lower percentages of fecal and urinary incontinence diagnoses compared with the percentages for specialized centers reported in the literature.

Incontinence and loneliness among Chinese older adults with multimorbidity in primary care: A cross-sectional study

OBJECTIVE

To evaluate the associations between incontinence and loneliness among the Chinese elderly with multimorbidity in primary care, with the specific aim to look into the relationship of incontinence with social and emotional subdomains of loneliness.

METHODS

This cross-sectional study included older patients with multimorbidity in public primary care clinics in Hong Kong. Loneliness was assessed by the De Jong Gierveld Loneliness Scale (DJGLS). Tobit models were used to evaluate the association between incontinence and loneliness before and after adjustment for socio-demographics, lifestyle behaviors, physical and psychological conditions, social support and living status.

RESULTS

A total of 741 patients were included. Before adjustment, incontinence was associated with higher levels of emotional loneliness (coefficient = 0.74, 95% CI = 0.43-1.06, p < .001) and higher levels of overall loneliness (coefficient = 0.81, 95% CI = 0.34-1.27, p = .001), but not social loneliness (coefficient = 0.34, 95% CI = -0.41 - 1.09, p = .38). After adjustment, incontinence was still significantly associated with higher levels of emotional loneliness (coefficient = 0.35, 95% CI = 0.07-0.64, p = .01).

CONCLUSION

Incontinence is independently associated with emotional loneliness. Healthcare professionals should pay special attention to emotional loneliness among older patients with incontinence. Further studies are needed to look into the potential mechanisms and interventions.

Psychometric Evaluation of the Toileting Behaviors: Women's Elimination Behaviors Scale in a Sample of College Women

BACKGROUND

Lower urinary tract symptoms in women including urinary incontinence and overactive bladder are common women's health conditions with negative financial, health, and quality of life consequences. Certain behaviors are associated with symptom presentation. Identifying and modifying these behaviors could decrease symptom presentation and progression. The Toileting Behaviors: Women's Elimination Behaviors (TB-WEB) scale is the only known theory-based tool to date designed to assess urinary toileting behaviors in women. It has been validated in middle-aged women, but it has not been validated in a younger population.

OBJECTIVES

The purpose of this study was to assess the psychometric properties of the TB-WEB in a sample of college-aged women.

METHODS

Surveys were sent to senior-level undergraduates electronically via university email addresses. One hundred ninety-three women responded to the survey. Those who had missing responses on the TB-WEB were excluded from psychometric analyses. Demographic characteristics from those with missing data were not statistically different from those with complete responses.

RESULTS

The total Cronbach α for the 18-item TB-WEB was 0.846, and the 5 previously identified subscales ranged between 0.528 and 0.919. A 5-factor structure was identified, similar to previous testing of the TB-WEB. Higher scores were significantly correlated with frequency of urinary incontinence episodes (rs= 0.311; P < 0.001).

CONCLUSIONS

The validated TB-WEB can be used reliably in a younger sample of women (mean age, 22 years) enrolled in college. It may be useful to identify problematic toileting behaviors and women at risk for having or developing lower urinary tract symptoms.

Prevalence of Pelvic Incontinence in Patients With Cystic Fibrosis

Cystic fibrosis (CF) patients are at risk for developing pelvic (urinary and/or fecal) incontinence due to progressive weakness of pelvic floor muscles secondary to recurrent episodes of coughing and respiratory infections. Many patients do not bring these symptoms to the attention of their health care providers because of social embarrassment and lack of knowledge of available effective treatment. Several studies have identified the prevalence of incontinence in CF adults and adolescents. However, few studies identified the problem in children with CF. Our study aims are to identify the prevalence of pelvic incontinence in CF patients aged 6 to 21 years, to identify the correlation between incontinence and severity of lung disease, and to help develop treatment strategy in collaboration with physical therapy to address these issues.

Analysis of the prevalence of and factors associated with overactive bladder in adult Korean women

Background

Overactive bladder (OAB) is one of the most prevalent lower urinary tract conditions and has been suggested to be related to various factors. We assessed the prevalence of and factors associated with OAB in women based on a large cross-sectional, population-based study of adult Korean women.

Methods

The Korean community health survey (KCHS) of 2012 was reviewed, and 107,950 female participants aged 19 to 107 years were identified for inclusion in this study. The overactive bladder symptom score (OABSS) was used to define and classify OAB as mild, moderate, or severe. Numerous variables, including marital status; physical activity; education and income levels; type of occupation; body mass index (BMI); smoking; alcohol; sleep time; and medical history of hypertension, diabetes mellitus, hyperlipidemia, or cerebral stroke, were evaluated. The correlation of these variables with the prevalence of OAB was analyzed using simple and multiple logistic regression analyses with complex sampling.

Results

The results showed that 5.2% of adult women experienced OAB. Multiple regression analyses showed a significant correlation between the following variables and OAB: older age (adjusted odds ratio [AOR] = 1.44, 95% confidence interval [CI] = 1.39–1.50, P < 0.001 as 10 years older); married status (AOR = 0.83, 95%CI = 0.70–0.96, P = 0.016); lower level of income (AOR = 1.50, 95%CI = 1.34–1.68, P < 0.001); high BMI (AOR = 1.33, 95%CI = 1.23–1.44, P < 0.001); smoking (AOR = 1.24, 95%CI = 1.04–1.47, P < 0.001); long sleep time (AOR = 1.95, 95%CI = 1.69–2.26); and medical history of hypertension (AOR = 1.11, 95%CI = 1.03–1.21, P = 0.011), diabetes mellitus (AOR = 1.38, 95%CI = 1.25–1.53, P < 0.001), hyperlipidemia (AOR = 1.27, 95%CI = 1.16–1.39, P < 0.001), and cerebral stroke (AOR = 2.04, 95%CI = 1.73–2.41, P < 0.001). The level of stress showed a dose-dependent association with OAB (AOR [95%CI] = 3.28 [2.81–3.83] > 2.11 [1.91–2.33] >1.28 [1.16–1.41] for severe > moderate > some stress, respectively, P < 0.001).

Conclusion

The prevalence of OAB was approximately 5.2% among adult Korean women. Older age; high BMI; stress level; sleep duration; levels of income and education; marital status; smoking; and medical history of hypertension, diabetes mellitus, hyperlipidemia, and cerebral stroke were significantly related to OAB in women.

How important is the α1-adrenoceptor in primate and rodent proximal urethra? Sex differences in the contribution of α1-adrenoceptor to urethral contractility

Urethral smooth muscle (USM) contributes to urinary continence by contracting during the urine storage phase, which is mainly mediated by activation of postjunctional α₁-adrenoceptors. Males and females show differences in the functioning of the lower urinary tract and the most common urinary tract symptoms (LUTS). LUTS in men typically occur in association with bladder outlet obstruction, whereas in women urinary urge-incontinence symptoms are more common. Therefore, this study aimed to evaluate sex differences in α₁-adrenoceptor subtype expression and their importance in proximal urethra contraction in the mouse (C57BL6/J) and marmoset (Callithrix jacchus). Contractile responses to phenylephrine, norepinephrine, potassium chloride (KCl), and electrical-field stimulation (EFS) were evaluated. Phenylephrine, norepinephrine, KCl, and EFS produced markedly greater contractions in male mice and marmoset USM compared with females. The sex differences remained unchanged by N^ω-nitro-l-arginine (l-NAME; nitric oxide synthase inhibitor), atropine (muscarinic receptor antagonist), and PPADS (P2X1-purinoceptor antagonist). Additionally, selective α_1A (but not α_1B- and α_1D-)-adrenoceptor antagonists significantly reduced phenylephrine-induced USM contractions. qRT-PCR for α_1A-, _B-, and _D-adrenoceptor subtypes revealed a marked presence of the α_1A-adrenoceptor subtype in male USM, but not females. Male mouse urethra also exhibited a higher tyrosine hydroxylase mRNA expression. Histomorphometric analysis showed a greater USM area in male than female mice. In conclusion, male mouse and marmoset proximal USM shows strong α_1A- adrenoceptor-induced contractions and abundant α_1A-adrenoceptor expression, whereas α_1A-adrenoceptor-mediated mechanisms are much less important in females. The differential expression of α₁-adrenoceptors in the proximal urethra may contribute to the higher incidence of urinary incontinence in women and obstructed voiding in men.

Analysis of the Prevalence and Factors Associated with Nocturia in Adult Korean Men

This study investigated the prevalence of and factors associated with nocturia in Korean men. A total of 92,626 participants aged between 19 and 103 years from the 2011 Korean Community Health Survey (KCHS) were enrolled. Simple and multiple logistic regression analyses with complex sampling investigated participants’ personal health and socioeconomic and disease factors. The prevalence of nocturia ≥1 time and ≥2 times/night was 41.8% and 17.6%, respectively, and nocturia increased with age (1.44 [1.39–1.50] for each 10-year increase, P < 0.001). Lower income levels (lowest, 1.27 [1.19–1.36]; low-middle, 1.13 [1.07–1.19]; upper-middle, 1.00 [0.95–1.06], P = 0.022) and higher levels of stress (severe, 1.38 [1.23–1.55]; moderate, 1.23 [1.16–1.31]; some, 1.11 [1.05–1.16]) exhibited dose-dependent relationships with nocturia (≥1 time; P < 0.001). Low education level (1.27 [1.20–1.36]), long sleep duration (1.33 [1.18–1.50]), and type of occupation showed significant associations with nocturia (≥1 time; P < 0.001). Underweight (1.19 [1.05–1.34]), hypertension (1.09 [1.03–1.15]), diabetes mellitus (1.32 [1.23–1.41]), hyperlipidaemia (1.28 [1.20–1.35]), and cerebral stroke (1.63 [1.40–1.89]) were significantly related to nocturia (≥1 time; P < 0.001). Married men were less likely to experience nocturia ≥2 times per night (0.72 [0.64–0.82], P < 0.001).

Toileting behaviours and lower urinary tract symptoms among female nurses: A cross-sectional questionnaire survey

BACKGROUND

Unhealthy toileting behaviours exist among women, and lower urinary tract symptoms have a high prevalence and significant effects on quality of life. However, the relationship between toileting behaviours and lower urinary tract symptoms is unclear.

OBJECTIVES

This study aimed to investigate the prevalence of lower urinary tract symptoms among female nurses, and the association between toileting behaviours and lower urinary tract symptoms.

DESIGN

A cross-sectional stratified cluster sampling study.

PARTICIPANTS

A total of 636 female clinical nurses from tertiary hospitals in Jinan (the capital city of Shandong Province, China).

METHODS

The Toileting Behaviour-Women's Elimination Behaviours and the International Consultation on Incontinence Questionnaire-Female Lower Urinary Tract Symptoms scales were used to assess the participants' toileting behaviours and lower urinary tract symptoms, respectively. Multiple linear regression analysis was used to evaluate the association between toileting behaviours and lower urinary tract symptoms.

RESULTS

Unhealthy toileting behaviours were common among the female nurses, with delayed voiding being the unhealthiest toileting behaviour, which was followed by place and position preference for voiding. Nearly 68% of the female nurses had at least one lower urinary tract symptom, nearly 50% had incontinence symptoms, 40% had filling symptoms, and 18% had voiding symptoms. Unhealthy toileting behaviours (premature voiding, delayed voiding, and straining to void) were positively associated with lower urinary tract symptoms. However, lower urinary tract symptoms were not significantly associated with voiding place or position preference. Among the control variables, being married or having a history of a urinary tract infection was associated with lower urinary tract symptoms. Having a higher income and regular menstrual period were negatively associated with lower urinary tract symptoms. Compared with vaginal delivery, caesarean delivery had a protective association with lower urinary tract symptoms.

CONCLUSION

Lower urinary tract symptoms among female nurses should not be overlooked, because their prevalence among female clinical nurses exceeded that among the general population of women. These findings highlight the importance of avoiding unhealthy toileting behaviours (especially premature voiding, delayed voiding, and straining to void), as these unhealthy toileting behaviours were significantly associated with susceptibility to lower urinary tract symptoms.

Brain activation in response to bladder filling in healthy adults: An activation likelihood estimation meta-analysis of neuroimaging studies

AIMS

Recent studies have used different neuroimaging techniques and identified various brain regions that are activated during bladder filling. However, there is a lack of consensus regarding which of these brain regions regulate the process of urine storage. The aim of this meta-analysis is to identify brain regions that are commonly activated during bladder filling in healthy adults across different studies.

METHODS

PubMed was searched for neuroimaging studies investigating the effects of bladder filling on regional brain activation. Studies were excluded if they did not report brain activation differences from whole-brain group analysis by comparing the state of bladder filling with the state of bladder rest. The current version of the activation likelihood estimation (ALE) approach was used for meta-analysis.

RESULTS

We identified 14 neuroimaging studies examining brain activation in response to experimental bladder filling in 181 healthy subjects, which reported 89 foci for ALE analysis. The meta-analysis revealed significant activation in multiple brain regions including thalamus (bilaterally), right insula, cerebellum, and brainstem (bilaterally).

CONCLUSIONS

Several key brain regions involved in sensory processing are commonly activated during bladder filling in healthy adults across different studies. Neurourol. Urodynam. 36:960-965, 2017. © 2016 Wiley Periodicals, Inc.

Women's toileting behaviours: an online survey of female advanced practice providers

AIMS

An online survey of female advanced practice providers (APPs) in a large urban healthcare system was conducted to describe behaviours they use to manage their personal bladder emptying.

METHODS

The questionnaire contained items on demographics, presence of urinary incontinence (UI), and behaviours used to void in work, public and home settings.

RESULTS

One hundred thirteen female APPs responded to the survey and 109 responded to items on UI. Over half (53%) reported experiencing UI at least once a week. In general, the APPs reported being worried about the cleanliness of public toilets and delaying voiding when busy. Incontinent APPs were older and had histories of more pregnancies than continent women. Incontinent APPs also used public toilets more frequently and when there was no or little need to void, and delayed or put off voiding while at work and when busy.

CONCLUSION

Although APPs have specialised knowledge about lower urinary tract anatomy and physiology, many engage in behaviours that may be detrimental to bladder health. More research is needed to explore behaviours women use to manage voiding and the effect of these behaviours on bladder health.

24-h Void number as an indicator of hydration status

BACKGROUND/OBJECTIVES

Few user-friendly hydration assessment techniques exist for the general population to use on a daily basis. The present study evaluated void number over 24 h as a potential hydration assessment tool.

SUBJECTS/METHODS

Male and female subjects collected urine for 24 h while adequately hydrated (n=44; 22 ± 4 years, 168 ± 16 cm, 73 ± 15 kg) or fluid restricted (n=43; 22 ± 3 years, 175 ± 10 cm, 81 ± 24 kg). As a control, participants were asked to void when feeling the 'first urge to void' on a commonly used urge scale and noted the volume of each void. For each sample, 24-h urine volume, osmolality (U(OSM)), specific gravity (U(SG)) and color were measured in the laboratory.

RESULTS

As designed, the level of urge upon voiding was consistent throughout the study (2 ± 0; 'first urge to void'). Samples were classified by U(SG) as either euhydrated (U(SG)<1.020) or hypohydrated (U(SG) ⩾ 1.020). Grouping by U(OSM) did not change results. Euhydrated versus hypohydrated individuals had greater 24-h urine volume (1933 ± 864 versus 967 ± 306 ml, respectively) and lower urine color (2 ± 1 versus 5 ± 1), U(SG) (1.012 ± 0.004 versus 1.025 ± 0.004) and UOSM (457 ± 180 versus 874 ± 175 mOsm/kg H2O; all P<0.001). Euhydrated individuals voided more than hypohydrated individuals over the 24-h period (5 ± 2 versus 3 ± 1 voids; P<0.001). Additionally, void number inversely correlated with hydration status as identified by U(SG) (r=-0.50; P<0.05) and U(OSM) (r=-0.56; P<0.05).

CONCLUSIONS

In conclusion, over 24 h, individuals with a higher void number were euhydrated (that is, had less concentrated hydration biomarkers) than those with a lower void number. Based on these data, void number might be utilized as a simple and feasible hydration assessment for the general public, as it utilizes no equipment or technical expertise.

Bladder dysfunction in presymptomatic gene carriers and patients with Huntington's disease

The objective of this study was to report bladder dysfunction and cystometric findings in a systematically studied cohort of Huntington's disease (HD) patients. In HD patients and asymptomatic HD gene carriers a urinary function questionnaire, neurologic assessment using the Unified Huntington's Disease Rating Scale, and postvoid residual volume measurement were applied. All patients were also invited to cystometric studies. Urinary function data were compared to control men and women. The most common symptoms in 54 HD patients (24 men) were those of bladder overactivity (men/women 54%/40%), followed by urinary incontinence (29%/43%) and symptoms of disturbed bladder emptying (25%/40%). Using urinary function questionnaires severe bladder dysfunction was found in 4%/0%, moderate in 21%/23%, and mild in 25%/30% of HD men/women. Urinary symptoms interfered with daily life in 21%/37% and sexual life in 21%/33% of sexually active HD men/women. In 5 HD men and 1 woman, increased postvoid residual volume (>100 ml) was found. Compared to 49/55 control men/women urinary incontinence, and urgency were more common in HD men, but not in HD women (urinary incontinence reported 10%/38% of control men/women). Cystometry, performed in 12 HD patients and 1 of 10 asymptomatic HD gene carriers, demonstrated detrusor-sphincter dyssynergia in 5 (42%), detrusor overactivity in 2 (17%), and reduced detrusor capacity in 2 (17%) HD patients. Our study demonstrated significant urinary symptoms in HD patients, which reduced their quality of life. Physicians helping HD patients should also consider this largely neglected aspect of the disease.