Cross-cultural adaptation and validation of the neurogenic bladder symptom score questionnaire for brazilian portuguese

Abstract

Objective:To cross-culturally adapt and check for the reliability and validity of the neurogenic bladder symptom score questionnaire to Brazilian Portuguese, in patients with spinal cord injury and multiple sclerosis.Materials and Methods:The questionnaire was culturally adapted according to international guidelines. The Brazilian version was applied in patients diagnosed with neurogenic bladder due to spinal cord injury or multiple sclerosis, twice in a range of 7 to 14 days. Psychometric properties were tested such as content validity, construct validity, internal consistency, and test-retest reliability.Results:Sixty-eight patients participated in the study. Good internal consistency of the Portuguese version was observed, with Cronbach α of 0.81. The test-retest reliability was also high, with an Intraclass Correlation Coefficient of 0.86 [0.76 - 0.92] (p<0.0001). In the construct validity, the Pearson Correlation revealed a moderate correlation between the Portuguese version of the NBSS and the Qualiveen-SF questionnaire (r = 0.66 [0.40-0.82]; p <0.0001).Conclusions:The process of cross-cultural adaptation and validation of the NBSS questionnaire for the Brazilian Portuguese in patients with neurogenic lower urinary tract dysfunction was concluded.

The creation and validation of a short form of the Neurogenic Bladder Symptom Score

“…Cohort 2 consisted of 1479 patients with SCI who completed the NBSS as part of a prospective, North American QOL study 7 . Cohort 3 consisted of 68 patients (mostly with SCI) from Brazil who completed the NBSS as part of a cross‐cultural validation project 6 . We used cohort 1 to illustrate the mean domain‐specific scores and their distribution (standard deviation [SD]) and to ensure there were no obvious floor or ceiling effects: 7.2 (SD, 2.8; range, 0‐12), 5.6 (SD 2.2; range, 0‐9), and 3.6 (SD, 1.7; range, 0‐7) for the incontinence, storage/voiding, and consequences domain, respectively.…”

“…We used data from several existing sources to create and perform this initial validation of the NBSS‐SF. These included data from (a) a prospective study of the responsiveness of the NBSS among SCI or MS patients receiving intravesical onabotulinum toxin 4 ; (b) the original validation study of the NBSS (consisting of 230 patients with MS, SCI, or congenital neurogenic disease) 3 ; (c) a large prospective QOL study (the Neurogenic Bladder Research Group SCI registry) that enrolled 1479 adult patients from across North America who had an SCI 7 ; and (d) data from the prospective, cross‐cultural adaption of the NBSS to Brazilian Portuguese 6 . Ethics approval had been obtained for all of these studies, and it was not required specifically for this study as it was secondary analysis of existing deidentified data.…”

“…It can be used for patients who void spontaneously, use indwelling catheters, clean intermittent catheterization (CIC), condom catheters, or those who have reconstructive bladder surgery or urinary diversions. It is responsive to change, 4 has been validated in multiple datasets, 5,6 used in several studies, 7,8 and licensed to more than 75 investigators in over 30 countries.…”

Neurogenic bladder symptom score: Polish translation, adaptation and validation of urinary disorder‐specific instrument for patients with neurogenic lower urinary tract dysfunction

“…Our questionnaire is the first comprehensive, urinary disorder-spe- adaptations and validations. 8,18,21 Our study is the first rigorous translation, adaptation and validation of the NBSS in the family of Slavic languages.…”

“…based on other validation studies, we primarily aimed at a sample size of 50 MS and 50 SCI patients. 15,18 Nevertheless, after consult with two independent Polish language specialists and one expert on health-related quality of life, we decided to exceed the sample size to provide more accurate values and smaller margins of error and to identify outliers without negative effects on statistical analyses. 19 This further increase in the primary sample size was related to specific Polish language declensions, free word order and pronunciation.…”