PMID- 33166827
OWN - NLM
STAT- MEDLINE
DCOM- 20210615
LR  - 20210615
IS  - 1878-5506 (Electronic)
IS  - 1389-9457 (Linking)
VI  - 76
DP  - 2020 Dec
TI  - Validation of the Brazilian Portuguese version of the narcolepsy severity scale.
PG  - 134-139
LID - S1389-9457(20)30472-X [pii]
LID - 10.1016/j.sleep.2020.10.016 [doi]
AB  - 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.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Pimentel Filho, Lucio Huebra
AU  - Pimentel Filho LH
AD  - Departamento de Psicobiologia, Universidade Federal de Sao Paulo, Brazil.
FAU - Gomes, Ana Carolina Dias
AU  - Gomes ACD
AD  - Departamento de Psicobiologia, Universidade Federal de Sao Paulo, Brazil.
FAU - Frange, Cristina
AU  - Frange C
AD  - Departamento de Neurologia e Neurocirurgia, Universidade Federal de Sao Paulo, 
      Sao Paulo, Brazil.
FAU - Tufik, Sergio
AU  - Tufik S
AD  - Departamento de Psicobiologia, Universidade Federal de Sao Paulo, Brazil.
FAU - Coelho, Fernando Morgadinho Santos
AU  - Coelho FMS
AD  - Departamento de Psicobiologia, Universidade Federal de Sao Paulo, Brazil; 
      Departamento de Neurologia e Neurocirurgia, Universidade Federal de Sao Paulo, 
      Sao Paulo, Brazil. Electronic address: fernandomorgadinho@hotmail.com.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Validation Study
DEP - 20201017
PL  - Netherlands
TA  - Sleep Med
JT  - Sleep medicine
JID - 100898759
SB  - IM
MH  - Brazil
MH  - Humans
MH  - Language
MH  - *Narcolepsy/diagnosis
MH  - Reproducibility of Results
MH  - *Surveys and Questionnaires
MH  - Translations
OTO - NOTNLM
OT  - Narcolepsy
OT  - Psychometric
OT  - Questionnaire
OT  - Sleep
OT  - Symptom evaluation
OT  - Validity
EDAT- 2020/11/10 06:00
MHDA- 2021/06/16 06:00
CRDT- 2020/11/09 20:17
PHST- 2020/08/15 00:00 [received]
PHST- 2020/09/22 00:00 [revised]
PHST- 2020/10/16 00:00 [accepted]
PHST- 2020/11/10 06:00 [pubmed]
PHST- 2021/06/16 06:00 [medline]
PHST- 2020/11/09 20:17 [entrez]
AID - S1389-9457(20)30472-X [pii]
AID - 10.1016/j.sleep.2020.10.016 [doi]
PST - ppublish
SO  - Sleep Med. 2020 Dec;76:134-139. doi: 10.1016/j.sleep.2020.10.016. Epub 2020 Oct 
      17.