TY - JOUR
T1 - No evidence for an epidemiological transition in sleep patterns among children
T2 - a 12-country study
AU - Manyanga, Taru
AU - Barnes, Joel D.
AU - Tremblay, Mark S.
AU - Katzmarzyk, Peter T.
AU - Broyles, Stephanie T.
AU - Barreira, Tiago
AU - Fogelholm, Mikael
AU - Hu, Gang
AU - Maher, Carol
AU - Maia, Jose
AU - Olds, Timothy
AU - Sarmiento, Olga L.
AU - Standage, Martyn
AU - Tudor-Locke, Catrine
AU - Chaput, Jean Philippe
N1 - Funding Information:
ISCOLE was funded by The Coca-Cola Company. The funder had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript. We wish to thank the ISCOLE External Advisory Board and the ISCOLE participants and their families who made this study possible. The ISCOLE Research Group includes the following: Coordinating Center, Pennington Biomedical Research Center: Peter T. Katzmarzyk, PhD (Co-PI); Timothy S. Church, MD, PhD (Co-PI); Denise G. Lambert, RN (Project Manager); Tiago Barreira, PhD; Stephanie Broyles, PhD; Ben Butitta, BS; Catherine Champagne, PhD, RD; Shannon Cocreham, MBA; Kara D. Denstel, MPH; Katy Drazba, MPH; Deirdre Harrington, PhD; William Johnson, PhD; Dione Milauskas, MS; Emily Mire, MS; Allison Tohme, MPH; Ruben Rodarte MS, MBA. Data Management Center, Wake Forest University: Bobby Amoroso, BS; John Luopa, BS; Rebecca Neiberg, MS; Scott Rushing, BS. Australia, University of South Australia: Timothy Olds, PhD (Site Co-PI); Carol Maher, PhD (Site Co-PI); Lucy Lewis, PhD; Katia Ferrar, B Physio (Hon); Effie Georgiadis, BPsych; Rebecca Stanley, BAppSc (OT) Hon. Brazil, Centro de Estudos do Laboratório de Aptidão Física de São Caetano do Sul (CELAFISCS): Victor Keihan Rodrigues Matsudo, MD, PhD (Site PI); Sandra Matsudo, MD, PhD; Timoteo Araujo, MSc; Luis Carlos de Oliveira, MSc; Luis Fabiano, BSc; Diogo Bezerra, BSc; Gerson Ferrari, MSc. Canada, Children's Hospital of Eastern Ontario Research Institute: Mark S. Tremblay, PhD (Site Co-PI); Jean-Philippe Chaput, PhD (Site Co-PI); Priscilla Bélanger, MA; Mike Borghese, MSc; Charles Boyer, MA; Allana LeBlanc, PhD; Claire Francis, MSc; Geneviève Leduc, PhD. China, Tianjin Women's and Children's Health Center: Pei Zhao, MD (Site Co-PI); Gang Hu, MD, PhD (Site Co-PI); Chengming Diao, MD; Wei Li, MD; Weiqin Li, MSc; Enqing Liu, MD; Gongshu Liu, MD; Hongyan Liu, MD; Jian Ma, MD; Yijuan Qiao, MD; Huiguang Tian, PhD; Yue Wang, MD; Tao Zhang, MSc; Fuxia Zhang, MD. Colombia, Universidad de los Andes: Olga Sarmiento, MD, PhD (Site PI); Julio Acosta, Yalta Alvira, BS; Maria Paula Diaz, Rocio Gamez, BS; Maria Paula Garcia, Luis Guillermo Gómez, Lisseth Gonzalez, Silvia Gonzalez, RD; Carlos Grijalba, MD; Leidys Gutierrez, David Leal, Nicolas Lemus, Etelvina Mahecha, BS; Maria Paula Mahecha, Rosalba Mahecha, BS; Andrea Ramirez, MD; Paola Rios, MD; Andres Suarez, Camilo Triana. Finland, University of Helsinki: Mikael Fogelholm, ScD (Site-PI); Elli Hovi, BS; Jemina Kivelä, Sari Räsänen, BS; Sanna Roito, BS; Taru Saloheimo, MS; Leena Valta. India, St. Johns Research Institute: Anura Kurpad, MD, PhD (Site Co-PI); Rebecca Kuriyan, PhD (Site Co-PI); Deepa P. Lokesh, BSc; Michelle Stephanie D'Almeida, BSc; Annie Mattilda R., MSc; Lygia Correa, BSc; Vijay Dakshina Murthy, BSc. Kenya, Kenyatta University: Vincent Onywera, PhD (Site Co-PI); Mark S. Tremblay, PhD (Site Co-PI); Lucy-Joy Wachira, PhD; Stella Muthuri, PhD. Portugal, University of Porto: Jose Maia, PhD (Site PI); Alessandra da Silva Borges, BA; Sofia Oliveira Sá Cachada, Msc; Raquel Nichele de Chaves, MSc; Thayse Natacha Queiroz Ferreira Gomes, PhD, MSc; Sara Isabel Sampaio Pereira, BA; Daniel Monteiro de Vilhena e Santos, PhD; Fernanda Karina dos Santos, MSc; Pedro Gil Rodrigues da Silva, BA; Michele Caroline de Souza, MSc. South Africa, University of Cape Town: Vicki Lambert, PhD (Site PI); Matthew April, BSc (Hons); Monika Uys, BSc (Hons); Nirmala Naidoo, MSc; Nandi Synyanya, Madelaine Carstens, BSc(Hons). United Kingdom, University of Bath: Martyn Standage, PhD (Site PI); Sean Cumming, PhD; Clemens Drenowatz, PhD; Lydia Emm, MSc; Fiona Gillison, PhD; Julia Zakrzewski, PhD. United States, Pennington Biomedical Research Center: Catrine Tudor-Locke, PhD (Site-PI); Ashley Braud, Sheletta Donatto, MS, LDN, RD; Corbin Lemon, BS; Ana Jackson, BA; Ashunti Pearson, MS; Gina Pennington, BS, LDN, RD; Daniel Ragus, BS; Ryan Roubion, John Schuna, Jr, PhD; Derek Wiltz. The ISCOLE External Advisory Board includes Alan Batterham, PhD; Teesside University; Jacqueline Kerr, PhD; University of California, San Diego; Michael Pratt, MD; Centers for Disease Control and Prevention; Angelo Pietrobelli, MD; Verona University Medical School.
Publisher Copyright:
© 2017 National Sleep Foundation.
PY - 2018/2
Y1 - 2018/2
N2 - Objective To examine the relationships between socioeconomic status (SES; household income and parental education) and objectively measured sleep patterns (sleep duration, sleep efficiency, and bedtime) among children from around the world and explore how the relationships differ across country levels of human development. Design Multinational, cross-sectional study from sites in Australia, Brazil, Canada, China, Colombia, Finland, India, Kenya, Portugal, South Africa, the United Kingdom, and the United States. Setting The International Study of Childhood Obesity, Lifestyle and the Environment. Participants A total of 6040 children aged 9-11 years. Measurements Sleep duration, sleep efficiency, and bedtime were monitored over 7 consecutive days using waist-worn accelerometers. Multilevel models were used to examine the relationships between sleep patterns and SES. Results In country-specific analyses, there were no significant linear trends for sleep duration and sleep efficiency based on income and education levels. There were significant linear trends in 4 countries for bedtime (Australia, United States, United Kingdom, and India), generally showing that children in the lowest income group had later bedtimes. Later bedtimes were associated with lowest level of parental education in only 2 countries (United Kingdom and India). Patterns of associations between sleep characteristics and SES were not different between boys and girls. Conclusions Sleep patterns of children (especially sleep duration and efficiency) appear unrelated to SES in each of the 12 countries, with no differences across country levels of human development. The lack of evidence for an epidemiological transition in sleep patterns suggests that efforts to improve sleep hygiene of children should not be limited to any specific SES level.
AB - Objective To examine the relationships between socioeconomic status (SES; household income and parental education) and objectively measured sleep patterns (sleep duration, sleep efficiency, and bedtime) among children from around the world and explore how the relationships differ across country levels of human development. Design Multinational, cross-sectional study from sites in Australia, Brazil, Canada, China, Colombia, Finland, India, Kenya, Portugal, South Africa, the United Kingdom, and the United States. Setting The International Study of Childhood Obesity, Lifestyle and the Environment. Participants A total of 6040 children aged 9-11 years. Measurements Sleep duration, sleep efficiency, and bedtime were monitored over 7 consecutive days using waist-worn accelerometers. Multilevel models were used to examine the relationships between sleep patterns and SES. Results In country-specific analyses, there were no significant linear trends for sleep duration and sleep efficiency based on income and education levels. There were significant linear trends in 4 countries for bedtime (Australia, United States, United Kingdom, and India), generally showing that children in the lowest income group had later bedtimes. Later bedtimes were associated with lowest level of parental education in only 2 countries (United Kingdom and India). Patterns of associations between sleep characteristics and SES were not different between boys and girls. Conclusions Sleep patterns of children (especially sleep duration and efficiency) appear unrelated to SES in each of the 12 countries, with no differences across country levels of human development. The lack of evidence for an epidemiological transition in sleep patterns suggests that efforts to improve sleep hygiene of children should not be limited to any specific SES level.
KW - Education
KW - Gini index
KW - Human development index
KW - Income
KW - Sleep
KW - Socioeconomic status
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UR - http://www.scopus.com/inward/citedby.url?scp=85037554779&partnerID=8YFLogxK
U2 - 10.1016/j.sleh.2017.10.010
DO - 10.1016/j.sleh.2017.10.010
M3 - Article
C2 - 29332686
AN - SCOPUS:85037554779
SN - 2352-7218
VL - 4
SP - 87
EP - 95
JO - Sleep Health
JF - Sleep Health
IS - 1
ER -