Gender-dependent association between sleep duration and overweight incidence in CHINESE school children: a national follow-up study

Abstract

BackgroundThe relationship between sleep duration and overweight risk remains unexplored among Chinese children. This study aims to evaluate this association in a national investigation with school-aged population.MethodsThere were 18,302 normal weight children in this Chinese national study which conducted during 2013–2014 included in the research. Anthropometric measurements were performed both at baseline and after 6–9 month. Sleep duration, physical activity, food intake and social economic information were collected by self-report questionnaire. Overweight was defined according to the updated Chinese criterion. Cox regression was used to evaluate the relationships between sleep duration and overweight incidence with multivariable adjusted.ResultsIn total, there were 443 new overweight cases recorded at the end of observation. Overweight incidence with greater than 9 h (long sleep duration, LSD), 7 to 9 h (middle sleep duration, MSD), and less than 7 h of sleep (short sleep duration, SSD) were 2.7, 3.1 and 3.3% respectively. Stratified by gender and compared with LSD, the hazard ratio (HR) of overweight for females with MSD was 1.60 (95% CI: 1.02–2.52). Stratified by age and gender, the HR in the group of MSD was 2.13 (1.20–3.77) in female aged 6–10 years and 0.24 (0.06–0.93) in female aged 15–17 years.ConclusionThe association between short sleep duration and overweight is age- and gender dependent. In group of small age and elder age, girls’ adiposity states are independently associated with sleep duration. Sleep recommendation is a potential preventive action for overweight/obesity among girls.

A Comparison of Short Sleep Duration and Insulin Resistance Association in Children Aged 13-15 Years Old and 16-18 Years Old

“…There was a significant difference between sleep duration and age group; namely, short sleep duration was more commonly found in the 16-18year age group. Similar results were also found in several previous studies [15,16,17,18].…”

Prevalence and Selected Sociodemographic of Movement Behaviors in Schoolchildren from Low- and Middle-Income Families in Nanjing, China: A Cross-Sectional Questionnaire Survey

“…Future studies should use comparable data to monitor SLP levels among Chinese schoolchildren to help promote schoolchildren obtaining appropriate sleep durations on a regular basis. This study found that the frequency of meeting SLP guidelines declined significantly with increases in grades, which can be explained by heavier academic pressure [36]. Increasing grades, regardless of family income, indicate that schoolchildren face excessive academic loads, with consequent decreases in their SLP durations.…”

Association between short sleep duration and overweight/obesity among middle-school students: a cross-sectional study in Fuzhou, China

“…Some studies proposed a U-shaped [12,13] or linear inverse correlation [14] between sleep duration and obesity, however, some studies proposed no correlation between them [15,16]. Meanwhile, the association between short sleep duration and the overweight/obesity was somehow affected by sex [17], in which the sex was considered a speci c trait for short sleep duration in these with overweigh/obesity [18,19]. In this study, we aimed to investigate the prevalence of short sleep duration among students in Fuzhou.…”