Association of Sleep Duration with Obesity among US High School Students

Division of Adolescent and School Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, 4770 Buford Highway, NE, Mailstop K-33, Atlanta, GA 30341, USA.
Journal of obesity 02/2012; 2012:476914. DOI: 10.1155/2012/476914
Source: PubMed


Increasing attention is being focused on sleep duration as a potential modifiable risk factor associated with obesity in children and adolescents. We analyzed data from the national Youth Risk Behavior Survey to describe the association of obesity (self-report BMI ≥95th percentile) with self-reported sleep duration on an average school night, among a representative sample of US high school students. Using logistic regression to control for demographic and behavioral confounders, among female students, compared to 7 hours of sleep, both shortened (≤4 hours of sleep; adjusted odds ratio (95% confidence interval), AOR = 1.50 (1.05-2.15)) and prolonged (≥9 hours of sleep; AOR = 1.54 (1.13-2.10)) sleep durations were associated with increased likelihood of obesity. Among male students, there was no significant association between obesity and sleep duration. Better understanding of factors underlying the association between sleep duration and obesity is needed before recommending alteration of sleep time as a means of addressing the obesity epidemic among adolescents.

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Available from: Geraldine S Perry, Dec 03, 2014
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    • "Some studies suggest, however, that these associations are apparent only in girls, not in boys [23] [24]. Longitudinal studies have also reported conflicting results; some confirm an inverse association [25] [26] [27], whereas other studies have not detected any association between sleep duration and obesity [28] [29]. "
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    ABSTRACT: Objective To investigate the prevalence of short time in bed (<8 h/day) and to examine the association between time in bed, overweight/obesity, health-risk behaviors and academic achievement in adolescents. Methods This study included a sample of adolescents (n = 2432) aged 15–17 years in the southern part of Norway (participation rate, 98.7%). A self-report questionnaire was used to assess time in bed, body mass index, dietary habits, physical activity habits, sedentary behavior, smoking and snuffing habits, and academic achievement. Results A total of 32.3% of the students reported short time in bed (<8 h/day) on an average school night. Several health-risk behaviors were associated with short sleep duration, including not being physically active for ⩾60 min for ⩾5 days/week (adjusted odds ratio, 1.33; 95% confidence interval, 1.05–1.68); using television/computer >2 h/day (1.63; 1.23–2.17); being a current smoker (2.46; 1.80–3.35) or snuffer (2.11; 1.57–2.85); having an irregular meal pattern (1.33; 1.05–1.68); intake of sweets/candy ⩾4 times/week (0.51; 0.32–0.83) and poor academic achievement (1.62; 1.26–2.09). All odds ratios were adjusted for sex, age and parental education. Conclusions In Norwegian adolescents, short time in bed is associated with several health-risk behaviors and poor academic achievement.
    Full-text · Article · Jun 2014 · Sleep Medicine
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    • "Adolescents go to bed late due to social and extracurricular activities occurring late in the evening (Roberts et al. 2010), technology distractions before bedtime (Calamaro et al. 2009) and delayed circadian timing associated with pubertal development (Carskadon et al. 1993). Insufficient sleep has negative effects on physical health (Lowry et al. 2012), cognition (Gruber et al. 2010) and emotions (Dahl 1999), and increases the risk of injuries (Pizza et al. 2010). "
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    ABSTRACT: The aim of the study was to test the motivation and awareness variables of the I-change model as predictors of adolescent intention to go to bed earlier. Questionnaires regarding sleep related motivational and awareness variables were administered to 127 sleep restricted (determined by actigraphy) high school students (12–17 years old). The motivational variables positive attitudes towards sleep and parents setting wake time predicted higher intentions to go bed earlier. The awareness variable sleep related cues to action also predicted higher intentions to advance bedtime. Positive attitudes towards sleep partially mediated the effect of sleep related cues to action on intention to advance bedtime. Future sleep promotion programs should train adolescents to detect cues to go to bed earlier to increase their intentions to go to bed earlier. Adolescents should be assisted to develop positive attitudes towards sleep as to enhance their autonomous motivation to advance their bedtime.
    Full-text · Article · Jun 2014 · Current Psychology
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    • "Should the MTSM program be successful in advancing bedtimes and increasing sleep duration, it can have a positive impact on adolescent health and well-being including improved physical health (e.g. weight regulation, Lowry et al. 2012; less car accidents, Pizza et al. 2010) cognitive health (e.g. academic performance, Gruber et al. 2010, and emotional health (e.g. "
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    ABSTRACT: Sleep restriction is a prevalent issue for adolescents and has been associated with negative cognitive, emotional, and physical health (e.g., poor attention, depressed mood, obesity). Existing sleep promotion programs are successful in improving adolescents’ sleep knowledge but not sleep behaviour. The aim of this randomized controlled trial is to evaluate the effectiveness of Motivating Teens to Sleep More program – a sleep promotion program with embedded sleep education that combines three approaches: motivational interviewing style, tailoring activities, and stage-based intervention – as compared to a sleep education only control in motivating adolescents to go to bed earlier leading to prolonged sleep duration. The Motivating Teens to Sleep More study will be conducted with adolescents at a Montreal high school. Half of the participants will be randomly assigned to the Motivating Teens to Sleep More program condition and the other half to the sleep education control condition. Each condition will consist of four 1-hour sessions spanning four consecutive weeks. Bedtime will be assessed by sleep logs completed for a week prior to the start of the program, in the middle of the program and following the program. Sleep onset and total sleep time will be assessed by actigraphy for one week prior to the start and following the program. The Motivating Teens to Sleep More program is a novel intervention that contributes theoretically to the field of pediatric sleep by merging three approaches to motivate normally developing adolescents to adopt earlier bedtimes. Should the program be successful in advancing bedtimes and increasing total sleep time, the study would offer insights in how to design effective motivational sleep promotion programs for adolescents, which can potentially improve adolescent health and well-being. Trial registration ISRCTN19425350.
    Full-text · Article · Jan 2014
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