Validity and reliability of the Turkish version of the neurogenic bladder symptom score

Validity and reliability of the Persian version of the STarT musculoskeletal tool

BACKGROUND

The Subgrouping for Targeted Treatment (STarT) musculoskeletal (MSK) tool stratifies patients with MSK disorders (MSDs) into prognostic categories based on poor outcomes.

PURPOSE

This study aimed at investigating the validity and reliability of the Persian STarT MSK tool in people suffering from painful MSDs in Iran.

METHODS

A total of 593 subjects with painful MSDs including neck, shoulder, low back, knee, and multisite pain received and completed the STarT MSK tool, visual analog scale (VAS), EuroQol five-dimensions three-levels questionnaire (EQ-5D-3 L), short form-36 health survey questionnaire (SF-36), and Örebro musculoskeletal pain screening questionnaire (ÖMPSQ) in the first visit. To examine test-retest reliability, 234 patients completed the STarT MSK tool 2 days after the initial visit.

RESULTS

In this study, 139 (23.5%), 266 (44.9%), and 188 (31.7%) participants were classified as low-, medium-, and high-risk groupings for poor outcomes, respectively. Spearman's correlation coefficient showed a strong relationship among Persian STarT MSK tool and EQ-5D-3 L (-0.78), SF-36 (-0.76), and OMPSQ (0.70). The results of known-group validity indicated that this tool could distinguish among the participants in different risk subgroups based on the scores of the ÖMPSQ, VAS, SF36, and EQ-5D-5 L (p < .001). No ceiling and floor effects were observed. Cronbach's alpha and intra-class correlation coefficient (ICC2,1) were acceptable (0.71) and excellent (0.98), respectively.

CONCLUSION

The Persian version of STarT MSK tool has shown to be a valid and reliable instrument to stratify people with painful MSDs into low-, medium-, and high-risk subgroups based on persistent pain disability.

The validity and reliability of the Arabic version of the short form of neurogenic bladder symptoms score in patients with spinal cord injury

BACKGROUND

The Neurogenic Bladder Symptom Score-Short Form (NBSS-SF) evaluates the impact of disease-specific symptoms on the quality of life in individuals with neurogenic bladder (NB). There is no data on the validity and reliability of the NBSS-SF questionnaire in the Arabic language, so this study aimed to examine the psychometric characteristics of the Arabic NBSS-SF in patients with spinal cord injury (SCI).

METHODS

International standards were followed when culturally adapting the questionnaire. The Arabic version was conducted in patients with neurogenic bladder caused by SCI twice within a 14 day period. Psychometric properties such as content validity, construct validity, internal consistency, and test-retest reliability were tested. Internal consistency and test-retest reliability was evaluated using Cronbach's alpha, and the Intraclass Correlation Coefficient (ICC), respectively. Construct validity was assessed by comparing the NBSS-SF with the Short Form (SF-12) and the Qualiveen questionnaire.

RESULTS

One hundred and one patients with SCI participated in the study. The internal consistency for the overall NBSS-SF score (Cronbach's α of 0.82) and for each subdomain was variable (urinary incontinence 0.84; storage/voiding 0.72; consequences 0.57). ICC was 0.91 for the overall score and 0.94 for the urinary incontinence subdomain, 0.72 for storage/voiding, and 0.90 for consequences. The correlation analysis showed that the Arabic version of NBSS-SF has good construct validity.

CONCLUSION

Our results showed that the Arabic version of NBSS-SF is a valid and reliable instrument for evaluating NB symptoms in the Arabic population suffering from SCI.

[DEVELOPMENT OF JAPANESE TRANSLATION OF THE NEUROGENIC BLADDER SYMPTOM SCORE]

(Objectives) To develop Japanese translations of the standard and short forms of the Neurogenic Bladder Symptom Score (Subjects and methods) The questionnaires were forward translated by a Japanese healthcare professional and non-medical professional and backward translated by two native English-speaking translators. Then, the products were harmonized by the participants involved in the translational processes. Finally, 15 persons with spinal cord lesions were interviewed to improve the provisional Japanese translations based on their suggestions. (Results) Throughout the forward and backward translations and their harmonization, no major translational problems were encountered, other than those attributable to differences in syntax between English and Japanese. The persons could complete the provisional Japanese translations of the standard and short forms in median 7.0 and 3.0 minutes, respectively. Although none of them reported difficulty in answering the questions, 6, 3, and 5 persons pointed out that the tenth question (the seventh question in the short form) and the answers to the nineteenth and twenty-second questions, respectively, were not easy to understand. Taking their suggestions into consideration, we finalized the Japanese translations with the help of a developer of the questionnaire as well as the back-translators. (Conclusions) After a multi-step review process, linguistically valid Japanese translations of the standard and short forms of the Neurogenic Bladder Symptom Score (Neurogenic Bladder Symptom Score Japanese version 1.0) were completed. We hope that these Japanese translations will facilitate future research on patient-reported outcomes in persons with neurogenic lower urinary tract dysfunction.

Psychometric properties of the Persian version of neurogenic bladder symptom score questionnaire: A methodological study on patients with multiple sclerosis and stroke

OBJECTIVES

Concerning the impact of neurogenic lower urinary tract dysfunction (NLUTD) on quality of life, besides the lack of standard psychometrically-analyzed Persian tools, the present study investigated the validity and reliability of the Persian version of the neurogenic bladder symptom score (NBSS) questionnaire.

METHODS

A total of 279 multiple sclerosis (MS) or stroke/cerebrovascular accident (CVA) patients over 18 years of age with NLUTD referred to the neurology clinics entered the study in 2021-2022. After translation, back-translation, and developing a Persian version, its validity and reliability were determined. The content validity index (CVI) and content validity ratio (CVR) were calculated quantitatively. To determine the internal consistency and scale reliability, a test-retest was used.

RESULTS

The Cronbach's α coefficient was 0.83 and the intraclass correlation coefficient (95% confidence interval) was 0.85 (0.82, 0.88). Cronbach's α in all domains (incontinence, storage and voiding, and consequence) was greater than 0.70. The criterion validity also showed a positive correlation of NBSS with the International Consultation on Incontinence Questionnaire-overactive bladder (p < 0.001 and r = 0.55). The face validity was acceptable according to the opinion of 10 participants. To determine the CVI and the CVR, 10 experts' panels reviewed all items related to the questionnaire in terms of necessity, clarity, transparency, and relevancy. Based on the expert panel all NBSS criteria got a high score, and all criteria were essential to assess NLUTD (CVI: 0.78-1).

CONCLUSIONS

Regarding validity and reliability, the Persian version NBSS questionnaire can properly evaluate NLUTD in MS or stroke/CVA patients.

Cross-cultural adaptation and validation of the neurogenic bladder symptom score for Spanish speakers

AIM

To perform a cross-cultural adaptation and validation of the Neurogenic Bladder Symptom Score (NBSS) to Spanish in patients with neurogenic lower urinary tract dysfunction.

MATERIALS AND METHODS

The questionnaire was culturally adapted according to international guidelines. It was applied, twice in a range of 14-28 days. Psychometric properties were tested such as content validity, construct validity, internal consistency, and test-retest reliability.

RESULTS

A total of 82 patients between 18 and 78 years old (mean age of 43.9) participated in the study, and completed the first NBSS assessment; only 39 (32.19%) performed the test-retest study. The internal consistency was tested by Cronbach α with a result of 0.86 (95% CI, 0.81-0.90). The reliability was tested by interclass correlation coefficient with a result of 0.91 [0.87-0.95] (p < 0.0001). The construct validity was tested by Pearson correlation between NBSS and Qualiveen-SF, which showed a moderate correlation with a result of 0.57 (p < 0.0001). One-way analysis of variance with trend analysis demonstrated that patients who reported having a more severe problem with their bladder function had a higher NBSS total score (p < 0.001).

CONCLUSION

The results of this study demonstrated that the Spanish version of the NBSS has a good internal consistency and reliability, proving its applicability.