Evidence map›Paper›PMID 35415902›Full record

ArticleJournal of sleep research2022

Negative impact of insomnia and daytime sleepiness on quality of life in individuals with the cyclin-dependent kinase-like 5 deficiency disorder.

Jenny Downs, Peter Jacoby, Jacinta Saldaris, Helen Leonard, Tim Benke, Eric Marsh, Scott Demarest

Open access · greenAbstract read
In one paragraph

Article in Journal of sleep research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 15 citations in OpenAlex.

  1. Effects of ganaxolone on non-seizure outcomes in CDKL5 Deficiency Disorder: Double-blind placebo-controlled randomized trial.European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society · 2024
    Trial
  2. From QI-disability to QID-12: creating a brief proxy-report measure of quality of life for children with intellectual disability.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
    Article
  3. Observational
  4. Exploring sleep challenges in CDKL5 Deficiency Disorder.Journal of neurodevelopmental disorders · 2026
    Article
  5. Article
  6. International journal of molecular sciences · 2025
    Article
  7. Modification of a parent-report sleep scale for individuals with CDKL5 deficiency disorder: a psychometric study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Jenny DownsTelethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Perth, Australia.ORCID 0000-0001-7358-9037
Peter JacobyTelethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Perth, Australia.
Jacinta SaldarisTelethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Perth, Australia.
Helen LeonardTelethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Perth, Australia.
Tim BenkeChildren's Hospital Colorado, Paediatric Neurology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Eric MarshDivision of Neurology, Children's Hospital of Philadelphia, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Scott DemarestChildren's Hospital Colorado, Paediatric Neurology, University of Colorado School of Medicine, Aurora, Colorado, USA.
The Kids Research Institute Australia · AUChildren's Hospital Colorado · USChildren's Hospital of Philadelphia · US

Funding

Multi-Site Validation of Biomarkers and Core Clinical Outcome Measures for Clinical Trials Readiness in CDKL5 Deficiency DisorderU01NS114312 · NINDS · UNIVERSITY OF COLORADO DENVER · PI BENKE, TIMOTHY A, DOWNS, JENNY · 2021 to 2025
$4.7M
NINDS NIH HHS U01 NS114312
6 · The paper itself

Abstract

Cyclin-dependent kinase-like 5 (CDKL5) gene pathogenic variants result in CDKL5 deficiency disorder (CDD). Early onset intractable epilepsy and severe developmental delays are prominent symptoms of CDD. Comorbid sleep disturbances are a major concerning symptom for families. We aimed to explore the relationship between insomnia, daytime sleepiness, sleep medications and quality of life in children with CDD. Caregivers of 129 children with CDD in the International CDKL5 Disorder Database completed the Quality-of-Life Inventory-Disability (QI-Disability) questionnaire and "Disorders of Maintaining Sleep" (DIMS) and the "Disorders of Excessive Somnolence" (DOES) items of the Sleep Disturbance Scale for Children. Adjusting for covariates, a unit increase in DOES score was associated with reduced quality of life total (coefficient -3.06, 95% confidence interval [CI] 1.35-7.80), physical health (coefficient -7.20, 95% CI -10.64, -3.76) and negative emotions (coefficient -3.90, 95% CI -7.38, -0.42) scores. Adjusting for covariates, a unit increase in DIMS score was associated with reduced negative emotions (coefficient -6.02, 95% CI -10.18, -2.86). Use of sleep medications had small influences on the effect sizes. This study highlights the importance of sleep problems as a determinant of quality of life in children with CDD, consistent with effects observed for other groups of children with intellectual disability. Excessive daytime sleepiness was particularly associated with detrimental effects on quality of life. Further research in optimal behavioural and pharmaceutical management of sleep problems for this population is required.

Indexed as

Disorders of Excessive SomnolenceSleep Initiation and Maintenance DisordersSleep Wake DisordersChildEpileptic SyndromesHumansQuality of LifeSpasms, InfantileSurveys and Questionnairesdevelopmental and epileptic encephalopathymaintaining sleepsleep disorderssleepinesssleep medications

Identifiers

PMID35415902
PMCPMC9489598
OpenAlexW4223481134

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.