{"id":60662,"date":"2013-04-01T00:00:00","date_gmt":"2018-12-04T07:44:09","guid":{"rendered":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/sleep-duration-or-bedtime-exploring-the-association-between\/"},"modified":"2018-12-04T08:44:09","modified_gmt":"2018-12-04T07:44:09","slug":"sleep-duration-or-bedtime-exploring-the-association-between","status":"publish","type":"resume","link":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/sleep-duration-or-bedtime-exploring-the-association-between\/","title":{"rendered":"Sleep duration or bedtime? Exploring the association between sleep timing behaviour, diet and BMI in children and adolescents."},"content":{"rendered":"

OBJECTIVE<\/strong>
\nTo determine whether sleep timing behaviour is associated with energy intake and diet quality in children and adolescents.<\/p>\n

DESIGN<\/strong>
\nCross-sectional analysis of nationally representative survey data.<\/p>\n

SAMPLE<\/strong>
\nA total of 2200 participants of the 2007 Australian National Children's Nutrition and Physical Activity Survey aged 9-16 years with 2 days of food intake data, 4 days of use of time data and complete anthropometry. Participants were grouped into one of four sleep-wake behaviour categories: early bed-early rise (EE); early bed-late rise (EL); late bed-early rise (LE) and late bed-late rise (LL). The four categories were compared for body mass index (BMI) z-score, energy intake and diet quality assessed using the Dietary Guideline Index for Children and Adolescents. Analyses were adjusted for survey design, sociodemographic characteristics, sleep duration and physical activity level (PAL).<\/p>\n

RESULTS<\/strong>
\nIn adjusted multivariate regression models with sleep timing behaviour group as the independent variable, the 'LL' category compared with the 'EE' category had a higher BMI z-score (β=0.20, 95% confidence interval (CI) 0.06 to 0.34, P=0.007), and lower diet quality (β=-4.0, 95% CI -5.7 to -2.3, P<0.001). Children and adolescents who went to bed late also had a higher intake of extra foods (that is, energy-dense, nutrient-poor foods) while those whom went to bed early consumed more fruit and vegetables. Energy intake was associated with sleep duration (β=-4.5 kJ, 95% CI -6.7 to -2.4, P<0.001), but not sleep timing behaviour.<\/p>\n

CONCLUSIONS<\/strong>
\nLate bedtimes and late wake up times are associated with poorer diet quality, independent of sleep duration, PAL and child and sociodemographic characteristics.<\/p>\n","protected":false},"template":"","mots_cles":[],"class_list":["post-60662","resume","type-resume","status-publish","hentry"],"acf":{"adresse":"School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia. rebecca.golley@unisa.edu.au","annee":"2013","mois":"4","numero":"37:4","page":"546-551","auteurs":[{"ID":17931,"post_author":"0","post_date":"2018-12-03 19:58:13","post_date_gmt":"2018-12-03 18:58:13","post_content":"","post_title":"R K Golley","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"r-k-golley","to_ping":"","pinged":"","post_modified":"2018-12-03 19:58:13","post_modified_gmt":"2018-12-03 18:58:13","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/r-k-golley\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":60659,"post_author":"0","post_date":"2018-12-04 08:44:07","post_date_gmt":"2018-12-04 07:44:07","post_content":"","post_title":"C A Maher","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"c-a-maher","to_ping":"","pinged":"","post_modified":"2018-12-04 08:44:07","post_modified_gmt":"2018-12-04 07:44:07","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/c-a-maher\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":60660,"post_author":"0","post_date":"2018-12-04 08:44:08","post_date_gmt":"2018-12-04 07:44:08","post_content":"","post_title":"L Matricciani","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"l-matricciani","to_ping":"","pinged":"","post_modified":"2018-12-04 08:44:08","post_modified_gmt":"2018-12-04 07:44:08","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/l-matricciani\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":60661,"post_author":"0","post_date":"2018-12-04 08:44:08","post_date_gmt":"2018-12-04 07:44:08","post_content":"","post_title":"T S Olds","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"t-s-olds","to_ping":"","pinged":"","post_modified":"2018-12-04 08:44:08","post_modified_gmt":"2018-12-04 07:44:08","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/t-s-olds\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"}],"sources":[{"ID":23720,"post_author":"0","post_date":"2018-12-03 21:34:39","post_date_gmt":"2018-12-03 20:34:39","post_content":"","post_title":"INTERNATIONAL JOURNAL OF OBESITY","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"international-journal-of-obesity","to_ping":"","pinged":"","post_modified":"2018-12-03 21:34:39","post_modified_gmt":"2018-12-03 20:34:39","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/source\/international-journal-of-obesity\/","menu_order":0,"post_type":"source","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":27455,"post_author":"0","post_date":"2018-12-03 22:53:07","post_date_gmt":"2018-12-03 21:53:07","post_content":"","post_title":"INT J PEDIATR OBES.","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"int-j-pediatr-obes","to_ping":"","pinged":"","post_modified":"2018-12-03 22:53:07","post_modified_gmt":"2018-12-03 21:53:07","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/source\/int-j-pediatr-obes\/","menu_order":0,"post_type":"source","post_mime_type":"","comment_count":"0","filter":"raw"}]},"yoast_head":"\nSleep duration or bedtime? 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