Ronaldo B Santos1,2, Soraya Giatti1,3, Aline N Aielo1,3, Wagner A Silva1,2, Barbara K Parise1,3, Lorenna F Cunha1,3, Silvana P Souza1,2, Airlane P Alencar4, Paulo A Lotufo1, Isabela M Bensenor1, Luciano F Drager5,6,7. 1. Center of Clinical and Epidemiologic Research (CPCE), University of São Paulo, Av. Prof. Lineu Prestes, 2565 - 4° Andar, Cidade Universitária, São Paulo, SP, 05508-000, Brazil. 2. Unidade de Hipertensão, Instituto do Coração (InCor), Faculdade de Medicina, University of São Paulo, São Paulo, Brazil. 3. Unidade de Hipertensão, Disciplina de Nefrologia, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil. 4. Department of Statistic, Institute of Mathematics and Statics, University of São Paulo, São Paulo, SP, Brazil. 5. Center of Clinical and Epidemiologic Research (CPCE), University of São Paulo, Av. Prof. Lineu Prestes, 2565 - 4° Andar, Cidade Universitária, São Paulo, SP, 05508-000, Brazil. luciano.drager@incor.usp.br. 6. Unidade de Hipertensão, Instituto do Coração (InCor), Faculdade de Medicina, University of São Paulo, São Paulo, Brazil. luciano.drager@incor.usp.br. 7. Unidade de Hipertensão, Disciplina de Nefrologia, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil. luciano.drager@incor.usp.br.
Abstract
PURPOSE: This study was aimed to determine the magnitude and predictors of self-reported short/long sleep duration (SDUR) reclassifications using objective measurements. METHODS: Adult participants from the ELSA-Brasil study performed self-reported SDUR, 7-day wrist actigraphy, and a portable sleep study. We explored two strategies of defining self-reported SDUR reclassification: (1) short and long SDUR defined by <6 and ≥8h, respectively; (2) reclassification using a large spectrum of SDUR categories (<5, 5-6, 7-8, 8-9, and >9 h). RESULTS: Data from 2036 participants were used in the final analysis (43% males; age: 49±8 years). Self-reported SDUR were poorly correlated (r=0.263) and presented a low agreement with actigraphy-based total sleep time. 58% of participants who self-reported short SDUR were reclassified into the reference (6-7.99 h) or long SDUR groups using actigraphy data. 88% of participants that self-reported long SDUR were reclassified into the reference and short SDUR. The variables independently associated with higher likelihood of self-reported short SDUR reclassification included insomnia (3.5-fold), female (2.5-fold), higher sleep efficiency (1.35-fold), lowest O2 saturation (1.07-fold), higher wake after sleep onset (1.08-fold), and the higher number of awakening (1.05-fold). The presence of hypertension was associated with a 3.4-fold higher chance of self-reported long SDUR reclassification. Analysis of five self-reported SDUR categories revealed that the more extreme is the SDUR, the greater the self-reported SDUR reclassification. CONCLUSION: In adults, we observed a significant rate of short/long SDUR reclassifications when comparing self-reported with objective data. These results underscore the need to reappraise subjective data use for future investigations addressing SDUR.
PURPOSE: This study was aimed to determine the magnitude and predictors of self-reported short/long sleep duration (SDUR) reclassifications using objective measurements. METHODS: Adult participants from the ELSA-Brasil study performed self-reported SDUR, 7-day wrist actigraphy, and a portable sleep study. We explored two strategies of defining self-reported SDUR reclassification: (1) short and long SDUR defined by <6 and ≥8h, respectively; (2) reclassification using a large spectrum of SDUR categories (<5, 5-6, 7-8, 8-9, and >9 h). RESULTS: Data from 2036 participants were used in the final analysis (43% males; age: 49±8 years). Self-reported SDUR were poorly correlated (r=0.263) and presented a low agreement with actigraphy-based total sleep time. 58% of participants who self-reported short SDUR were reclassified into the reference (6-7.99 h) or long SDUR groups using actigraphy data. 88% of participants that self-reported long SDUR were reclassified into the reference and short SDUR. The variables independently associated with higher likelihood of self-reported short SDUR reclassification included insomnia (3.5-fold), female (2.5-fold), higher sleep efficiency (1.35-fold), lowest O2 saturation (1.07-fold), higher wake after sleep onset (1.08-fold), and the higher number of awakening (1.05-fold). The presence of hypertension was associated with a 3.4-fold higher chance of self-reported long SDUR reclassification. Analysis of five self-reported SDUR categories revealed that the more extreme is the SDUR, the greater the self-reported SDUR reclassification. CONCLUSION: In adults, we observed a significant rate of short/long SDUR reclassifications when comparing self-reported with objective data. These results underscore the need to reappraise subjective data use for future investigations addressing SDUR.
Authors: Luciano F Drager; Ronaldo B Santos; Wagner A Silva; Barbara K Parise; Soraya Giatti; Aline N Aielo; Silvana P Souza; Sofia F Furlan; Geraldo Lorenzi-Filho; Paulo A Lotufo; Isabela M Bensenor Journal: Chest Date: 2019-04-01 Impact factor: 9.410
Authors: Lianne M Kurina; Martha K McClintock; Jen-Hao Chen; Linda J Waite; Ronald A Thisted; Diane S Lauderdale Journal: Ann Epidemiol Date: 2013-04-24 Impact factor: 3.797
Authors: James E Gangwisch; Steven B Heymsfield; Bernadette Boden-Albala; Ruud M Buijs; Felix Kreier; Thomas G Pickering; Andrew G Rundle; Gary K Zammit; Dolores Malaspina Journal: Hypertension Date: 2006-04-03 Impact factor: 10.190
Authors: Martica H Hall; Matthew F Muldoon; J Richard Jennings; Daniel J Buysse; Janine D Flory; Stephen B Manuck Journal: Sleep Date: 2008-05 Impact factor: 5.849