Fenglei Wang1, Huijuan Liu2, Yi Wan1, Jing Li2, Yu Chen2, Jusheng Zheng3, Tao Huang4, Duo Li1. 1. Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China. 2. Jiaxing Maternity and Child Health Care Hospital, Jiaxing, China. 3. MRC Epidemiology Unit, University of Cambridge, Cambridge, UK. 4. Saw Swee Hock School of Public Health, National University of Singapore, Singapore.
Abstract
STUDY OBJECTIVES: To examine the association between sleep duration and overweight/obesity in preschool-aged children. METHODS: A total of 48,922 3-year old children enrolled in the Jiaxing Birth Cohort, who provided sleep information and anthropometric data, were included in the present study as baseline and were followed up to 5 years of age. Sleep duration was categorized as ≤ 10 hours, 11-12 hours, and ≥ 13 hours. Overweight and obesity were defined according to the cut point criteria in China. Prevalence ratios and risk ratios were used to assess the association between sleep duration and risk of overweight/obesity. RESULTS: In cross-sectional analyses at baseline, the adjusted prevalence ratios (95% confidence interval) of overweight (with 11-12 h of sleep being considered the reference group) for children sleeping ≤ 10 h and ≥ 13 h were 1.13 (1.06-1.20) and 1.16 (1.09-1.24), respectively, whereas the adjusted prevalence ratios (95% confidence interval) of obesity were 1.25 (1.11-1.40) and 1.25 (1.11-1.42). In longitudinal analyses, the adjusted risk ratios (95% confidence interval) of overweight for children sleeping ≤ 10 h and ≥ 13 h were 1.48 (1.26-1.74) and 1.13 (0.96-1.34), while adjusted risk ratios (95% confidence interval) of obesity were 1.77 (1.30-2.40) and 1.19 (0.85-1.66). Restricted cubic splines regression supported U-shaped curvilinear associations between sleep duration and overweight/obesity in both cross-sectional and longitudinal analyses. CONCLUSIONS: Both short and overlong sleep duration are associated with a higher risk of overweight/obesity in preschool-aged children. Optimizing sleep duration may be an important modifiable intervention for overweight and obesity.
STUDY OBJECTIVES: To examine the association between sleep duration and overweight/obesity in preschool-aged children. METHODS: A total of 48,922 3-year old children enrolled in the Jiaxing Birth Cohort, who provided sleep information and anthropometric data, were included in the present study as baseline and were followed up to 5 years of age. Sleep duration was categorized as ≤ 10 hours, 11-12 hours, and ≥ 13 hours. Overweight and obesity were defined according to the cut point criteria in China. Prevalence ratios and risk ratios were used to assess the association between sleep duration and risk of overweight/obesity. RESULTS: In cross-sectional analyses at baseline, the adjusted prevalence ratios (95% confidence interval) of overweight (with 11-12 h of sleep being considered the reference group) for children sleeping ≤ 10 h and ≥ 13 h were 1.13 (1.06-1.20) and 1.16 (1.09-1.24), respectively, whereas the adjusted prevalence ratios (95% confidence interval) of obesity were 1.25 (1.11-1.40) and 1.25 (1.11-1.42). In longitudinal analyses, the adjusted risk ratios (95% confidence interval) of overweight for children sleeping ≤ 10 h and ≥ 13 h were 1.48 (1.26-1.74) and 1.13 (0.96-1.34), while adjusted risk ratios (95% confidence interval) of obesity were 1.77 (1.30-2.40) and 1.19 (0.85-1.66). Restricted cubic splines regression supported U-shaped curvilinear associations between sleep duration and overweight/obesity in both cross-sectional and longitudinal analyses. CONCLUSIONS: Both short and overlong sleep duration are associated with a higher risk of overweight/obesity in preschool-aged children. Optimizing sleep duration may be an important modifiable intervention for overweight and obesity.
Authors: S R Patel; T Blackwell; S Redline; S Ancoli-Israel; J A Cauley; T A Hillier; C E Lewis; E S Orwoll; M L Stefanick; B C Taylor; K Yaffe; K L Stone Journal: Int J Obes (Lond) Date: 2008-10-21 Impact factor: 5.095
Authors: Jiaxiao Yu; Huili Jin; Li Wen; Wenjin Zhang; Richard Saffery; Chao Tong; Hongbo Qi; Mark D Kilby; Philip N Baker Journal: J Clin Sleep Med Date: 2021-11-01 Impact factor: 4.062
Authors: Myrtha E Reyna-Vargas; Arpita Parmar; Diana L Lefebvre; Meghan B Azad; Allan B Becker; Stuart E Turvey; Theo J Moraes; Wendy Lou; Padmaja Subbarao; Malcolm R Sears; Piushkumar J Mandhane; Indra Narang Journal: Nat Sci Sleep Date: 2022-07-05
Authors: Justyna Wyszyńska; Piotr Matłosz; Muhammad Asif; Agnieszka Szybisty; Paweł Lenik; Katarzyna Dereń; Artur Mazur; Jarosław Herbert Journal: BMJ Open Date: 2021-01-20 Impact factor: 2.692