scholarly journals Independent associations of sleep timing, duration and quality with adiposity and weight status in a national sample of adolescents: the UK Millennium Cohort Study

Author(s):  
Paul J Collings

AbstractBackgroundThere is evidence that short sleep elevates obesity risk in youth, but sleep is a multidimensional construct and few studies have investigated parameters beyond duration.ObjectivesTo investigate if sleep onset time, duration, latency, and night waking frequency are independently associated with adiposity and weight status in adolescents.MethodsThis was a cross-sectional observational study of 10,619 13-15y olds who provided self-reported sleep characteristics and underwent an anthropometric assessment to determine adiposity (body mass index (BMI) z-score and percent body fat (%BF)) and weight status. Adjusted linear and logistic regressions were used to investigate associations.ResultsCompared to a sleep onset time before 10pm, later sleep was associated with higher adiposity and higher likelihood of overweight and obesity in boys (after midnight, odds ratio (95% CI): 1.76 (1.19 to 2.60), p=0.004) and girls (between 11-11:59pm: 1.36 (1.17 to 1.65), p=0.002). Compared to sleeping for >9-10 hours, sleeping for ≤8 hours was associated with higher likelihood of overweight and obesity (boys: 1.80 (1.38 to 2.35), p<0.001); girls: 1.38 (1.06 to 1.79), p=0.016); there was evidence of a U-shaped association in girls for whom >10 hours of sleep was also associated with higher likelihood of overweight and obesity (1.31 (1.06 to 1.62); p=0.014). In girls, relative to a sleep latency of 16-30 minutes, sleep latencies ≥46 minutes were associated with higher adiposity (46-60 minutes, %BF: 1.47 (0.57 to 2.36), p=0.001) and higher likelihood of overweight and obesity (46-60 minutes: 1.39 (1.05 to 1.83); p=0.020). Often as opposed to never waking in the night was also associated with higher adiposity in girls (BMI z-score: 0.24 (0.08 to 0.41), p=0.004; %BF: 1.44 (0.44 to 2.44), p=0.005).ConclusionsSleep duration and timing, and sleep quality in girls, are independently associated with adiposity and weight status in adolescence and may be important targets for obesity prevention.

Author(s):  
Xinge Zhang ◽  
Yanan Chen ◽  
Rui Zhang ◽  
Justin B. Moore ◽  
Haotian Ruan ◽  
...  

This study examined the cross-sectional and longitudinal association of sleep timing with weight status in 14- to 19-year-old adolescents in Wuhan, China. A prospective school-based study was conducted in Wuhan, China between 28 May and 29 September 2019. Data on sociodemographic information, academic performance, diet, mental health status, physical activity, sleep characteristics, body weight, and height were collected. A linear regression model and binary logistic regression model were performed. A total of 1194 adolescents were included in the analysis. Adolescents who woke up before 05:45 had higher body mass index (BMI) Z-score (odds ratio (OR) with 95% confidence interval (CI) = 1.28 (1.05, 1.57), p = 0.02) and higher odds of overweight/obesity (odds ratio (OR) with 95% confidence interval (CI) = 1.74 (1.10, 2.76), p = 0.02) at baseline after fully adjustment for covariates, compared with those who woke up after 05:45. Longitudinal data showed a nonsignificant association between waking up time and change in BMI Z-score (p = 0.18). No association of bedtime with weight status was observed in this sample after full adjustment (p > 0.1). Earlier waking up time might contribute to overweight and obesity in adolescents; however, more data are needed to test and elucidate this relationship.


BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e032953
Author(s):  
Seydou Kaboré ◽  
Tieba Millogo ◽  
Joseph Kouesyandé Soubeiga ◽  
Hermann Lanou ◽  
Brice Bicaba ◽  
...  

ObjectiveThe objective of this study was to determine the prevalence and predictors of overweight and obesity in Burkina Faso using a population-based countrywide sample. We hypothesise that there is a significant burden related to overweight/obesity in Burkina Faso.DesignSecondary analysis of a population-based countrywide cross-sectional study.SettingBurkina Faso, all the 13 regions including both rural and urban residential areas.Participants4800 participants of both sexes, aged between 25 and 64 years.Main outcomesOverweight and obesity using body mass index cut-off levels of the WHO.ResultsThe prevalence of overweight and obesity in Burkina Faso were 13.82% (95% CI: 12.25 to 15.55) and 4.84% (95% CI: 3.99 to 5.86), respectively. Among men, the proportional odds of overweight/obesity increase with urban residency (p<0.001), greater age (p<0.002), marital status different from single (p≤0.007) and decrease with current smoking (p=0.009). Among women, the proportional odds of overweight/obesity increase with urban residency (p<0.001), primary educational level (p=0.01), high total blood cholesterol level (p<0.001) and high fasting blood glucose level (p=0.02), and decrease with current smoking (p<0.001).ConclusionOur study showed that nearly one person out of five in the adult population of Burkina has an abnormal weight status with women being more affected than men. Urban residency is a consistent risk factor in both men and women. Alcohol consumption and education were associated with an increased odds in only women. Overnutrition needs to be recognised as an important public health issue in Burkina Faso and nutrition interventions need to be reshaped to account for it.


BMJ Open ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. e020802 ◽  
Author(s):  
Bishwajit Ghose ◽  
Sanni Yaya

ObjectivesTo investigate the (1) time trends in body mass index (BMI) and (2) relationship between media use and body weight status among adult women in Nigeria. We hypothesise that higher frequency of media use is associated with higher likelihood of being overweight and obesity among adult women.Study designCross-sectional.SettingUrban and rural settings in Nigeria.ParticipantsAdult non-pregnant women aged between 15 and 49 years.MethodsData were derived from Nigeria Demographic and Health Surveys conducted in 2003, 2008 and 2013. The outcome variable was excess body weight (overweight and obesity), and main explanatory variables were frequency of reading newspaper, listening to radio and television (TV) viewing. Datasets were merged to perform pooled analysis, and were analysed using bivariate and multivariable regression techniques.ResultsOf the 69 401 participants, 16.2% had a BMI of 25.0–29.9 kg/m2(95% CI 15.8 to 16.6) and 6.6% had >30 kg/m2(95% CI 6.3 to 6.9). Between 2003 and 2013, the prevalence of overweight women increased by 4.1%, and that of obesity by 2.2%. Overall, radio was the most popular media followed by TV and newspaper. Respectively, 15.6% and 11.7% of the women reported using radio and TV almost every day and 30.6% and 25.1% at least once a week. In multivariable analysis, watching TV almost every day and at least once a week were associated with, respectively, 1.6 and 1.2 times higher odds of being overweight, and 2.7 and 1.5 times higher odds of being obese compared with those who never used radio. Similarly, significant associations were observed for newspaper and radio use as well.ConclusionThe prevalence of overweight and obesity is noticeably high among Nigerian women and has been increasing steadily over the past decade. A statistically significant association exists between BMI and the use of newspaper, radio and TV. Further studies are required to develop a better understanding of the mechanisms that underlie this relationship.


2020 ◽  
Vol 4 (1-3) ◽  
pp. 45
Author(s):  
Dania Mirza Ramadhanty ◽  
Bernie Endyarni Medise

Objective. Overweight is one of the health problems that often occur in children and adolescents throughout the world, both in developed and developing countries. Study results in USA showed yearly increase of overweight prevalence in children aged 2–19 years old. In addition, based on the results by the National Health and Nutrition Examination Survey 2009–2010 in United States, the highest percentage of overweight and obesity by age group was found at 12–19 years old (33.6%). Basic Health Research/Riskesdas’s data in 2013 showed the prevalence of overweight in adolescents aged 16–18 years old in Indonesia reached the highest value of 11.5%. Moreover, most teenagers see their body images as a match between self’s and others’ ideal perception. Teenagers with positive body image tend to be more confident and also easier to get along with other people, especially their peers. In this study, researcher aimed to investigate the relationship between teenagers who have excess body weight with body image, whether it had positive or negative impact.Methods: This was a cross-sectional study. Data collection was done from December 2017 to January 2018. Data collected were anthropometric measurements (weight and height) and the King College London Body Image Questionnaire's filled by participants. From 400 subjects who filled the questionnaires, a total of 350 participants matched the inclusion criteria and were analyzed. Chi square test was done as data analysis.Results: Chi-square analysis for excess body weight status in relation to body image scores showed no relationship (p=1,000).Conclusions: There was no significant relationship between excessive body weight and body image. 


2020 ◽  
Author(s):  
Jing Yuan ◽  
Xun Jiang ◽  
Tongyu Zhu ◽  
Yuhai Zhang ◽  
Yue Wang ◽  
...  

Abstract Background Childhood overweight and obesity have become significant public health challenges worldwide. This study aimed to explore whether caregivers’ feeding behavior and children’s eating behavior were associated with the weight status of preschool children in China.Methods A cross-sectional questionnaire was administered to 912 caregivers of preschool children from April to July 2016. Caregivers’ feeding behaviors were assessed by the Chinese Preschooler’s Caregiver Feeding Behavior Scale (CPCFBS). Children’s eating behaviors were evaluated using the Chinese Preschooler’s Eating Behavior Questionnaire (CPEBQ). After controlling for demographic characteristics, multiple linear regression and logistic regression analyses were performed to evaluate the relationship between caregivers’ feeding behavior, children's eating behavior, and children's body mass index (BMI). Results The results showed that weight concerns on the part of caregivers (β=0.53) and food responsiveness on the part of children (β=0.93) were positively correlated with children’s BMI, whereas caregivers’ responsibility for feeding (β=-0.68) and children’s external eating (β=-0.53) were negatively correlated with BMI. Among caregiver feeding behaviors, weight concerns (OR=4.54, P<0.001) and behavior-restricted feeding (OR=0.29, P<0.001) were positively correlated with children’s BMI. A child’s food responsiveness (OR=4.04, P<0.001) was also positively correlated with his/her BMI, while the child’s satiety responsiveness (OR=0.42, P<0.001) and emotional eating habits (OR=0.56, P<0.001) were negatively correlated with overweight/obesity status. Conclusions Our study demonstrated that children’s eating behavior and caregivers’ feeding behavior were associated with weight status among preschool children in China. Behavior interventions on caregivers as well as their children may prevent or reduce weight problems in preschool children. Trial registration This study was not a clinical experiment.


2011 ◽  
Vol 71 (6) ◽  
pp. 670-677 ◽  
Author(s):  
Suparna Chakrabarti ◽  
Stephen Abbott

Objectives: To explore attitudes to and beliefs about childhood overweight and obesity among Bangladeshi mothers and to check maternal perceptions of their children’s weight status. Design: Mixed methods cross-sectional study. Setting: A general practice in East London, UK. Methods: Qualitative interviews with 14 mothers; weighing and measuring 22 children. Results: Mothers were generally aware of broad health promotion messages about diet and exercise, but many tended to under-estimate their children’s weight status. Differences in view did not reflect in any simple way English language skills, and the range of views reflected those in the majority population. Conclusion: Health promotion initiatives should assess individual needs; membership of a Bangladeshi community does not necessarily predict knowledge, beliefs or behaviour, and assumptions that this community is different from others are misleading.


2012 ◽  
Vol 16 (11) ◽  
pp. 2005-2013 ◽  
Author(s):  
Eva Craig ◽  
John Reilly ◽  
Ruth Bland

AbstractObjectiveA variety of methods are available for defining undernutrition (thinness/underweight/under-fat) and overnutrition (overweight/obesity/over-fat). The extent to which these definitions agree is unclear. The present cross-sectional study aimed to assess agreement between widely used methods of assessing nutritional status in children and adolescents, and to examine the benefit of body composition estimates.DesignThe main objective of the cross-sectional study was to assess underweight, overweight and obesity using four methods: (i) BMI-for-age using WHO (2007) reference data; (ii) BMI-for-age using Cole et al. and International Obesity Taskforce cut-offs; (iii) weight-for-age using the National Centre for Health Statistics/WHO growth reference 1977; and (iv) body fat percentage estimated by bio-impedance (body fat reference curves for children of McCarthy et al., 2006). Comparisons were made between methods using weighted kappa analyses.SettingRural South Africa.SubjectsIndividuals (n 1519) in three age groups (school grade 1, mean age 7 years; grade 5, mean age 11 years; grade 9, mean age 15 years).ResultsIn boys, prevalence of unhealthy weight status (both under- and overnutrition) was much higher at all ages with body fatness measures than with simple anthropometric proxies for body fatness; agreement between fatness and weight-based measures was fair or slight using Landis and Koch categories. In girls, prevalence of unhealthy weight status was also higher with body fatness than with proxies, although agreement between measures ranged from fair to substantial.ConclusionsMethods for defining under- and overnutrition should not be considered equivalent. Weight-based measures provide highly conservative estimates of unhealthy weight status, possibly more conservative in boys. Simple body composition measures may be more informative than anthropometry for nutritional surveillance of children and adolescents.


2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Ismail N. Pangani ◽  
Festus K. Kiplamai ◽  
Jane W. Kamau ◽  
Vincent O. Onywera

Background. The understanding of obesity as a growing health problem in Africa and Tanzania in particular is hampered by lack of data as well as sociocultural beliefs in which overweight and obesity are revered. This study sought to determine the prevalence of overweight and obesity among primary school children aged 8–13 years in Dar es Salaam, Tanzania.Method. A cross-sectional analytical research design was used to study overweight and obesity in primary schools in Dar es Salaam, Tanzania. The target population was 150,000 children aged 8–13 years. Stratified random sampling was used to select 1781 children. Weight and height were taken and WHO standards for children were used to determine weight status.Results. Findings showed that the prevalence of overweight and obesity was 15.9% and 6.7%, respectively (N=1781). However, 6.2% of the children were underweight. There were significant differences in mean BMI between children in private and public schools (p=0.021), between male and female (p<0.001), and across age groups of 8–10 and 11–13 years (p<0.001).Conclusion. The prevalence of overweight and obesity among primary school children is significant and requires management and prevention strategies.


Sign in / Sign up

Export Citation Format

Share Document