Validation of the Brazilian Portuguese version of the narcolepsy severity scale
| Autor: | Fernando Morgadinho Santos Coelho, Ana Carolina Dias Gomes, Sergio Tufik, Lucio Huebra Pimentel Filho, Cristina Frange |
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| Rok vydání: | 2020 |
| Předmět: |
Cataplexy
Population Polysomnography 03 medical and health sciences 0302 clinical medicine Brazilian Portuguese Cronbach's alpha Surveys and Questionnaires medicine Humans Translations education Language Narcolepsy Sleep disorder education.field_of_study medicine.diagnostic_test business.industry Reproducibility of Results General Medicine medicine.disease language.human_language 030228 respiratory system language medicine.symptom business Sleep paralysis Brazil 030217 neurology & neurosurgery Clinical psychology |
| Zdroj: | Sleep Medicine. 76:134-139 |
| ISSN: | 1389-9457 |
| DOI: | 10.1016/j.sleep.2020.10.016 |
| Popis: | Introduction Narcolepsy type 1 is a sleep disorder and the most common cause of hypersonia of central origin. It is characterized by sleep attacks, cataplexy, sleep-related hallucinations, sleep paralysis and sleep fragmentation in a pleomorphic presentation. The Narcolepsy Severity Scale (NSS), questionnaire which assesses the frequency and impact of the main symptoms of narcolepsy was developed in order to determine its clinical severity, needing translation, cultural adaptation and validation in many languages. The objective is to validate the Brazilian Portuguese version of the NSS. Methods The Brazilian version of the NSS was translated to Brazilian Portuguese and applied to patients with a diagnosis of narcolepsy type 1 at the Daytime Excessive Sleepiness Service, at Psychobiology Department of the Universidade Federal de Sao Paulo (UNIFESP) between February 2018 and July 2019. Results A total of 52 patients completed the questionnaire. Cultural adaptations were made to better comprehension of patients. The Brazilian version of the NSS showed high internal consistency, demonstrated by the Cronbach's alpha coefficient of 0.82. It showed good reproducibility capacity, verified through the test-retest, whose intraclass correlation was 0.98. The average severity of Brazilian patients was 33.94 (±11.24), higher than the values found in other population, which also underwent validation of this scale. There was a correlation between sleep latency in diagnostic polysomnography and the NSS. Conclusions The Brazilian Portuguese version of NSS showed to be valid and reproducible tool for assessing the severity of patients with type 1 narcolepsy and have potential impact on clinical practice. |
| Databáze: | OpenAIRE |
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