Comparing clinical bladder diaries and recalled patient reports for measuring lower urinary tract symptoms in the symptoms of Lower Urinary Tract Dysfunction Research Network (LURN)

Accuracy in reporting incontinence in adults with spina bifida: A pilot study

BACKGROUND

The accuracy of self-reported urinary incontinence (UI) and fecal incontinence (FI) among adults with spina bifida (SB) is unknown. We aimed to quantify the accuracy of self-reported recall incontinence in the last 4 weeks using prospective diary data.

METHODS

Adults with SB were enrolled via patient advocacy groups in a larger 30-day smartphone-based ecological momentary assessment study of daily well-being and incontinence. We examined agreement between yes/no questions on exit questionnaires ("In the last 4 weeks, did you leak any urine and get your underwear, pads, pull-ups or disposable underwear wet?") and 30-day diaries. Collected data included a non-validated 4-item UI Negativity scale (UIN: 0-100, 0 = no impact). Inter-rater reliability was assessed with Cohen's kappa (>0.60 = substantial). FI was analyzed similarly. Sub-groups were too small for statistical analysis.

RESULTS

Median age of 88 adults was 35 years old (70% female, 53% shunted, 71% community ambulators). Among 81 adults reporting UI in the last month, 79 (98%) had diary-documented UI (UI agreement), 2 (2%) did not (Summary Table). Among 7 adults reporting no UI in the last month, 5 (71%) did not record UI in their diaries (agreement in no UI), 2 (29%) did. Both adults reporting no UI on exit questionnaires, despite contrary diary data, experienced single UI episodes (negativity: 0 and 6). In contrast, the UI agreement group recorded UI on median 18 days (median negativity: 22). Sensitivity of the recall UI question was 0.98 (specificity 0.71, kappa 0.69). Among 66 adults reporting FI in the last month, 65 (98%) had diary-documented FI (FI agreement), 1 (2%) did not. Among 22 adults reporting no FI in the last month, 17 (77%) did not record FI in their diaries (agreement in no FI), 5 (23%) did. Five adults reporting no FI on exit questionnaires, despite contrary diary data, experienced a median single episode (median negativity: 8). In contrast, the FI agreement group recorded FI on median 5 days (median negativity: 31). Sensitivity of the recall FI question was 0.93 (specificity 0.94, kappa 0.81). Results were unchanged when analyzing the first and last 28 days of data.

COMMENT

Sensitivity/specificity of single incontinence questions approach those reported for women with UI but without SB. Diaries may best serve SB adults with bothersome incontinence.

CONCLUSIONS

Self-reported incontinence accurately and reliably captures UI and FI among adults with SB. It may minimize less bothersome incontinence, supporting its use in screening for clinical practice and research.

Can we increase the value of data from bladder diaries? International Consultation on Incontinence-Research Society 2023

BACKGROUND

Bladder diaries represent a fundamental component in the assessment of patients presenting with lower urinary tract symptoms. Nevertheless, their importance often remains underappreciated and undervalued within clinical practice. This paper aims to conduct a comprehensive review of the existing literature concerning the utility of bladder diaries, underscore the criticality of their precision, elucidate the factors contributing to noncompliance with bladder diary completion, and investigate potential strategies for enhancing patient compliance.

MATERIALS AND METHODS

A review of the English-language scientific literature available in the domains of Medline, Embase, Emcare, Midirs, and Cinahl was conducted. This was supplemented by discussion at the International Consultation on Incontinence Research Society Proposal session to define knowledge and identify gaps in knowledge surrounding the utility of bladder diaries. The existing evidence and outcome of the relevant discussion held in the meeting are presented.

RESULTS

Bladder diaries (BD) serve to characterize the nature and severity of storage lower urinary tract symptoms (LUTS) and provide an objective record of an individual's urination patterns. They aid in the refinement and customization of treatment strategies based on the clinical responses documented in the diary, optimizing treatment outcomes. Notably, both BD and urodynamic studies (UDS) play complementary yet distinct roles in LUTS evaluation. BD offers a more comprehensive and accessible approach to assessing specific storage LUTS, particularly due to their affordability and widespread availability, especially in resource-limited settings. Nevertheless, the absence of a standardized BD format across global healthcare systems presents a significant challenge. Despite being recognized as reliable, noninvasive, validated, and cost-effective tools for evaluating patients with LUTS, the implementation and completion of BD have proven to be complex. The introduction of automated bladder diaries heralds an era of precise, real-time data collection, potentially enhancing the patient-clinician relationship. Completion of bladder diaries depends on an array of individual, social, and healthcare-specific factors. Compliance with bladder diary completion could be enhanced with clear instructions, patient education, regular follow-ups and positive re-enforcement. This study has identified four critical areas for future research: Addressing healthcare disparities between affluent and developing nations, enhancing the current functionality and effectiveness of bladder diaries, exploring the feasibility of incorporating bladder diaries into the treatment and education process and improving the quality and functionality of existing bladder diaries.

CONCLUSION

Bladder diaries play a pivotal role in the evaluation and management of patients with LUTS, providing a holistic perspective. When their complete potential is harnessed, they have the capacity to revolutionize the paradigm of LUTS management, ushering in a patient-centered era of care.

Dynamic analysis of the individual patterns of intakes, voids, and bladder sensations reported in bladder diaries collected in the LURN study

The goal of this study was to develop the novel analytical approach and to perform an in-depth dynamic analysis of individual bladder diaries to inform which behavioral modifications would best reduce lower urinary tract symptoms, such as frequency and urgency. Three-day bladder diaries containing data on timing, volumes, and types of fluid intake, as well as timing, volumes, and bladder sensation at voids were analyzed for 197 participants with lower urinary tract symptoms. A novel dynamic analytic approach to bladder diary time series data was proposed and developed, including intra-subject correlations between time-varying variables: rates of intake, bladder filling rate, and urge growth rate. Grey-box models of bladder filling rate and multivariable linear regression models of urge growth rate were developed for individual diaries. These models revealed that bladder filling rate, rather than urine volume, was the primary determinant of urinary frequency and urgency growth rate in the majority of participants. Simulations performed with the developed models predicted that the most beneficial behavioral modifications to reduce the number of urgency episodes are those that smooth profiles of bladder filling rate, which might include behaviors such as exclusion of caffeine and alcohol and/or other measures, e.g., increasing number and decreasing volumes of intakes.

Dynamic analysis of the individual patterns of intakes, voids, and bladder sensations reported in bladder diaries collected in the LURN study

The goal of this study was to perform an in-depth dynamic analysis of individual bladder diaries to inform which behavioral modifications would best reduce lower urinary tract symptoms, such as frequency and urgency. Three-day bladder diaries containing data on timing, volumes, and types of fluid intake, as well as timing, volumes, and bladder sensation at voids were analyzed for 197 participants with lower urinary tract symptoms. A novel dynamic analytic approach to bladder diary time series data was proposed and developed, including intra-subject correlations between time-varying variables: rates of intake, bladder filling rate, and urge growth rate. Grey-box models of bladder filling rate and multivariable linear regression models of urge growth rate were developed for individual diaries. These models revealed that bladder filling rate, rather than urine volume, was the primary determinant of urinary frequency and urgency growth rate in the majority of participants. Simulations performed with the developed models predicted that the most beneficial behavioral modifications to reduce the number of urgency episodes are those that smooth profiles of bladder filling rate, which might include behaviors such as exclusion of caffeine and alcohol and/or other measures, e.g., increasing number and decreasing volumes of intakes.

Healthy bladder storage and emptying functions in community-dwelling women measured by a 2-day bladder health diary

INTRODUCTION

The prevalence of healthy bladder storage and emptying function in community-dwelling women is not well established.

METHODS

A planned secondary analysis of a US cross-sectional study designed to validate a bladder health instrument was conducted in women aged ≥18 years. A subset was invited to complete the novel 2-day bladder health diary capturing bladder storage and emptying experiences. Overall healthy bladder function was defined as ≤8 waking/daytime voids and ≤1 void during sleeping/nighttime; along with the absence of leakage, urgency, emptying difficulties (initiation, flow, efficacy, relief of urge sensation) and pain. Descriptive statistics of healthy bladder functions and regression models of factors associated with healthy function are reported.

RESULTS

Of the 383 invited, 237 (62%) eligible women returned complete dairies. Of these, 12% (29/237) met criteria for overall healthy bladder function. Most (96%) denied pain, 74% had healthy daytime and 83% had healthy nighttime voiding frequency, 64% were continent, 36% reported healthy emptying and 30% denied any urgency episodes. Middle income (odds ratio [OR]:95% confidence interval [CI] = 11.4:1.9-67.4 for $75k-$99 999 vs. $25 000-$49 999), Graduate education (4.8:1.4-17) and previously seeking treatment for bladder problems (OR:95%CI = 0.1; 0-0.9) were associated with overall healthy function.

CONCLUSION

The prevalence of overall healthy bladder function was very low based on our strict definition of health as measured on a 2-day diary. However, most women had healthy voiding frequency and denied pain or urinary leakage. Postvoid dribbling and urgency most commonly contributed to an overall unhealthy bladder. Further investigation is needed to determine whether these diary derived measures are meaningful for patient-oriented bladder health research.