Bladder-related quality of life in people with neurological disorders: reliability and validity of the Turkish version of the King's Health Questionnaire in people with spinal cord injury

Psychometric validity and reliability of the Turkish version of the questionnaire for urinary incontinence diagnosis in women with urinary incontinence

BACKGROUND

The aim of this study was to evaluate the psychometric validity and reliability of the Turkish version of the Questionnaire for Urinary Incontinence Diagnosis (QUID), which was developed for women with urinary incontinence.

METHODS

This cross-sectional, methodological study included 600 female participants aged 18 years and above with Turkish reading and writing skills. Psychometric methods comprised correlation analysis, internal consistency (Cronbach's alpha), test-retest reliability, and receiver operating characteristic (ROC) curve analysis. The QUID, King's Health Questionnaire (KHQ), and Incontinence Severity Index (ISI) were administered consecutively to assess construct validity and diagnostic performance. Statistical significance was set at p < 0.05.

RESULTS

The Turkish version of the QUID demonstrated high validity and reliability in distinguishing stress and urge urinary incontinence. The QUID scores were significantly positively correlated with the KHQ and ISI scores, indicating consistency with the established measures (p < 0.05). The test‒retest reliability analysis confirmed that the QUID scale provided consistent results over time, with high internal consistency reflected by a Cronbach's alpha coefficient of 0.858, which suggests the questionnaire's stability and reliability for repeated measurements. Additionally, receiver operating characteristic (ROC) curve analyses revealed area under the curve (AUC) values ranging from 0.886 to 0.996 for each subscale, highlighting the high discriminative power of the QUID in distinguishing different types of urinary incontinence effectively.

CONCLUSIONS

The results of this study indicate that the Turkish version of the QUID is a reliable and valid tool for diagnosing urinary incontinence in clinical practice and may contribute positively to patients' quality of life by providing an accurate diagnosis.

TRIAL REGISTRATION

Not applicable.

Reliability and validity of the Turkish version of the intermittent self-catheterization questionnaire in patients with spinal cord injury

PURPOSE

To evaluate the validity and reliability of the Turkish version of the Intermittent Self-Catheterization Questionnaire (ISC-Q) in patients with spinal cord injury (SCI). This questionnaire evaluates four problems related to the use of ISC, which are ease of use, convenience, discreetness and psychological well-being.

METHODS

A total of 60 SCI (40 males, 20 females) patients were included in the study. Reliability was assessed using Cronbach's α and intraclass correlation coefficient (ICC) methods, and the validity was assessed using the correlations between the ISC-Q scores and the scores for the King's health questionnaire (KHQ).

RESULTS

The mean age of the study sample was 37.07 ± 12.6 years. Of patients, 56.6% were completely injured. Both the internal consistency (Cronbach's alpha coefficient 0.899-0.947) and the test-retest reliability (intraclass correlation coefficient 0.899-0.947) of the ISC-Q were found to be high in patients with SCI. In the validity analysis, significant positive correlation was identified between convenience, psychological well-being, and total score domains and most subgroups of the KHQ, and also significant negative correlation was found between the discreetness of the domain and the impact of urinary incontinence, role limitation, physical limitation, social limitation and emotional status domains of the KHQ.

CONCLUSION

The Turkish version of the ISC-Q can be considered a reliable and valid tool for the evaluation of quality of life related to catheterization in patients with SCI.

Recommendations for evaluation of neurogenic bladder and bowel dysfunction after spinal cord injury and/or disease

Objective: To provide an overview of clinical assessments and diagnostic tools, self-report measures (SRMs) and data sets used in neurogenic bladder and bowel (NBB) dysfunction and recommendations for their use with persons with spinal cord injury /disease (SCI/D).Methods: Experts in SCI/D conducted literature reviews, compiled a list of NBB related assessments and measures, reviewed their psychometric properties, discussed their use in SCI/D and issued recommendations for the National Institutes of Health (NIH), National Institute of Neurological Disorders and Stroke (NINDS) Common Data Elements (CDEs) guidelines.Results: Clinical assessments included 15 objective tests and diagnostic tools for neurogenic bladder and 12 for neurogenic bowel. Following a two-phase evaluation, eight SRMs were selected for final review with the Qualiveen and Short-Form (SF) Qualiveen and the Neurogenic Bowel Dysfunction Score (NBDS) being recommended as supplemental, highly-recommended due to their strong psychometrics and extensive use in SCI/D. Two datasets and other SRM measures were recommended as supplemental.Conclusion: There is no one single measure that can be used to assess NBB dysfunction across all clinical research studies. Clinical and diagnostic tools are here recommended based on specific medical needs of the person with SCI/D. Following the CDE for SCI studies guidelines, we recommend both the SF-Qualiveen for bladder and the NBDS for bowel as relatively short measures with strong psychometrics. Other measures are also recommended. A combination of assessment tools (objective and subjective) to be used jointly across the spectrum of care seems critical to best capture changes related to NBB and develop better treatments.