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CC BY-NC-ND 4.0 · Sleep Sci 2020; 13(01): 49-53
DOI: 10.5935/1984-0063.20190131
ORIGINAL ARTICLE

How many days are needed for a reliable assessment by the Sleep Diary?

Autor*innen

  • Diego de Alcantara Borba

    1   Universidade do Estado de Minas Gerais, 1Departamento de Ciências do Movimento Humano - Ibirité - Minas Gerais - Brazil

  • Raquel Sousa Reis

    1   Universidade do Estado de Minas Gerais, 1Departamento de Ciências do Movimento Humano - Ibirité - Minas Gerais - Brazil

  • Pedro Henrique Tadeu de Melo Lima

    1   Universidade do Estado de Minas Gerais, 1Departamento de Ciências do Movimento Humano - Ibirité - Minas Gerais - Brazil

  • Lucas Alves Facundo

    2   Universidade Federal de Minas Gerais, Departamento de Esportes, Escola de Educação Física, Fisioterapia e Terapia Ocupacional - Belo Horizonte - Minas Gerais - Brazil

  • Fernanda Veruska Narciso

    1   Universidade do Estado de Minas Gerais, 1Departamento de Ciências do Movimento Humano - Ibirité - Minas Gerais - Brazil
    2   Universidade Federal de Minas Gerais, Departamento de Esportes, Escola de Educação Física, Fisioterapia e Terapia Ocupacional - Belo Horizonte - Minas Gerais - Brazil

  • Andressa Silva

    2   Universidade Federal de Minas Gerais, Departamento de Esportes, Escola de Educação Física, Fisioterapia e Terapia Ocupacional - Belo Horizonte - Minas Gerais - Brazil

  • Marco Túlio de Mello

    2   Universidade Federal de Minas Gerais, Departamento de Esportes, Escola de Educação Física, Fisioterapia e Terapia Ocupacional - Belo Horizonte - Minas Gerais - Brazil
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Introduction Population sleep registration is important for the epidemiological investigation of possible disorders and diseases associated with sleep deprivation and restriction. The aim of the current study was to verify how many days and weeks are required for a reliable sleep diary application.

Methods 53 subjects of both genders participated in the study (Age: 25±9 years). The volunteers answered the morning-evening questionnaire for later identification of their chronotype (21 mornings; 22 undetermined; 10 evenings). They then received the sleep diary to fill in for a period of 28 consecutive days (or 4 weeks) of their nighttime sleep. The participant was instructed to describe the time at which they started sleeping and woke up within one hour after waking up.

Results There was no difference in participants’ sleep time between weeks. The participants had longer sleep times on Sunday and Saturday compared to other days of the week. The sleep diary reliability values increased with the increasing number of nights, reaching adequate reliability (≥ 0.70) with seven consecutive days recorded.

Conclusion A sleep diary seems to be a reliable tool for assessing adult sleep time, especially when used for a period of at least seven consecutive days including weekends.

Sleep - Sleep Deprivation - Surveys - Questionnaires


Publikationsverlauf

Eingereicht: 16. September 2019

Angenommen: 30. Oktober 2019

Artikel online veröffentlicht:
09. November 2023

© 2023. Brazilian Sleep Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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