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Association between sleep and working memory in children with ADHD: a cross-sectional study.
Sleep Med. 2015 Oct; 16(10):1192-7.SM

Abstract

OBJECTIVE/BACKGROUND

This study aimed to examine the relationship between sleep problems and working memory in children aged 5-13 years with attention-deficit/hyperactivity disorder (ADHD).

PATIENTS/METHODS

Children with ADHD were recruited into a randomized controlled trial from 21 paediatric practices in VIC, Australia. Cross-sectional data for intervention and control children were pooled at 6 months post randomization for the current analyses (n = 189). Children who met the Diagnostic Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) criteria for ADHD and had a parent-reported moderate/severe sleep problem that fulfilled diagnostic criteria for a behavioural sleep disorder were recruited into the study. Sleep was assessed by detailed parent (Children's Sleep Habits Questionnaire) and self-reports (Self-Sleep Report). Working memory was measured using the Working Memory Test Battery for Children (low and very low working memory defined as <25th and <10th percentiles, respectively). Analyses were adjusted for child age and gender, internalizing and externalizing comorbidities, and socio-economic status.

RESULTS

Self-reported sleep problem severity was associated with poorer working memory; for each standard deviation increase in self-reported sleep problems, working memory scores decreased by -3.8 points (95% confidence interval (CI): -6.7, -0.8; p = 0.01). There was some evidence that self-reported sleep problems were associated with low (p = 0.06) and very low working memory (p = 0.01). There was minimal evidence that parent-reported sleep problems were associated with poorer working memory with the exception of bedtime resistance problems.

CONCLUSIONS

Behavioural sleep problems and working memory are associated in children with ADHD, particularly when sleep is assessed by self-report.

Authors+Show Affiliations

Community Health Services Research, Murdoch Children's Research Institute, Parkville, VIC, Australia; The Royal Children's Hospital, Parkville, VIC, Australia; Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia. Electronic address: emma.sciberras@mcri.edu.au.Community Health Services Research, Murdoch Children's Research Institute, Parkville, VIC, Australia.Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia; Clinical Epidemiology and Biostatistics Unit, Murdoch Children's Research Institute, The Royal Children's Hospital, Flemington Road, Parkville, VIC, Australia.Community Health Services Research, Murdoch Children's Research Institute, Parkville, VIC, Australia; The Royal Children's Hospital, Parkville, VIC, Australia; Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26429744

Citation

Sciberras, E, et al. "Association Between Sleep and Working Memory in Children With ADHD: a Cross-sectional Study." Sleep Medicine, vol. 16, no. 10, 2015, pp. 1192-7.
Sciberras E, DePetro A, Mensah F, et al. Association between sleep and working memory in children with ADHD: a cross-sectional study. Sleep Med. 2015;16(10):1192-7.
Sciberras, E., DePetro, A., Mensah, F., & Hiscock, H. (2015). Association between sleep and working memory in children with ADHD: a cross-sectional study. Sleep Medicine, 16(10), 1192-7. https://doi.org/10.1016/j.sleep.2015.06.006
Sciberras E, et al. Association Between Sleep and Working Memory in Children With ADHD: a Cross-sectional Study. Sleep Med. 2015;16(10):1192-7. PubMed PMID: 26429744.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Association between sleep and working memory in children with ADHD: a cross-sectional study. AU - Sciberras,E, AU - DePetro,A, AU - Mensah,F, AU - Hiscock,H, Y1 - 2015/07/06/ PY - 2015/03/22/received PY - 2015/06/16/revised PY - 2015/06/17/accepted PY - 2015/10/3/entrez PY - 2015/10/3/pubmed PY - 2016/8/3/medline KW - Attention-deficit/hyperactivity disorder KW - Child KW - Executive functioning KW - Sleep KW - Working memory SP - 1192 EP - 7 JF - Sleep medicine JO - Sleep Med VL - 16 IS - 10 N2 - OBJECTIVE/BACKGROUND: This study aimed to examine the relationship between sleep problems and working memory in children aged 5-13 years with attention-deficit/hyperactivity disorder (ADHD). PATIENTS/METHODS: Children with ADHD were recruited into a randomized controlled trial from 21 paediatric practices in VIC, Australia. Cross-sectional data for intervention and control children were pooled at 6 months post randomization for the current analyses (n = 189). Children who met the Diagnostic Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) criteria for ADHD and had a parent-reported moderate/severe sleep problem that fulfilled diagnostic criteria for a behavioural sleep disorder were recruited into the study. Sleep was assessed by detailed parent (Children's Sleep Habits Questionnaire) and self-reports (Self-Sleep Report). Working memory was measured using the Working Memory Test Battery for Children (low and very low working memory defined as <25th and <10th percentiles, respectively). Analyses were adjusted for child age and gender, internalizing and externalizing comorbidities, and socio-economic status. RESULTS: Self-reported sleep problem severity was associated with poorer working memory; for each standard deviation increase in self-reported sleep problems, working memory scores decreased by -3.8 points (95% confidence interval (CI): -6.7, -0.8; p = 0.01). There was some evidence that self-reported sleep problems were associated with low (p = 0.06) and very low working memory (p = 0.01). There was minimal evidence that parent-reported sleep problems were associated with poorer working memory with the exception of bedtime resistance problems. CONCLUSIONS: Behavioural sleep problems and working memory are associated in children with ADHD, particularly when sleep is assessed by self-report. SN - 1878-5506 UR - https://www.unboundmedicine.com/medline/citation/26429744/Association_between_sleep_and_working_memory_in_children_with_ADHD:_a_cross_sectional_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1389-9457(15)00823-0 DB - PRIME DP - Unbound Medicine ER -