Evidence map›Paper›PMID 33843171›Full record

ArticleTurkish journal of medical sciences2021

Impact of COVID-19 on serum melatonin levels and sleep parameters in children

Özlem Yayıcı Köken, Pembe Gültutan, Merve Sibel Güngören, Gülsüm İclal Bayhan, Deniz Yılmaz, Esra Gürkaş, Hamit Özyürek, Ayşegül Neşe Çıtak Kurt

Open access · bronzeAbstract read
In one paragraph

Article in Turkish journal of medical sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

6 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Acute myocarditis and low melatonin: unraveling a potential link.Frontiers in cardiovascular medicine · 2025
    Article
  3. Review
  4. Review
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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

8 authors at 2 institutions in 1 country.

Özlem Yayıcı KökenDepartment of Pediatric Neurology, Children’s’ Hospital, Ankara City Hospital, Ankara, TurkeyORCID 0000-0003-2112-8284
Pembe GültutanDepartment of Pediatric Neurology, Children’s’ Hospital, Ankara City Hospital, Ankara, TurkeyORCID 0000-0001-8595-3430
Merve Sibel GüngörenDüzen Laboratories Group, Ankara, TurkeyORCID 0000-0002-0203-981X
Gülsüm İclal BayhanDepartment of Pediatric Infectious Disease, Children’s Hospital, Ankara City Hospital, Ankara, TurkeyORCID 0000-0002-1423-4348
Deniz YılmazDepartment of Pediatric Neurology, Children’s’ Hospital, Ankara City Hospital, Ankara, TurkeyORCID 0000-0002-0789-8955
Esra GürkaşDepartment of Pediatric Neurology, Children’s’ Hospital, Ankara City Hospital, Ankara, TurkeyORCID 0000-0003-3942-5105
Hamit ÖzyürekDepartment of Pediatric Neurology, Children’s’ Hospital, Ankara City Hospital, Ankara, TurkeyORCID 0000-0003-4663-7157
Ayşegül Neşe Çıtak KurtDepartment of Pediatric Neurology, Yıldırım Beyazıt University, Faculty of Medicine, Ankara, TurkeyORCID 0000-0002-7277-3550
Memorial Ankara Hospital · TRAnkara Yıldırım Beyazıt University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background/aim: This study aimed to analyze the serum melatonin levels and changes in sleep patterns in pediatric patients with coronavirus disease 2019 (COVID-19). Materials and methods: This study was designed as a descriptive, cross-sectional study. Serum melatonin levels and sleep parameters of children with the diagnosis of COVID-19 who had mild and moderate disease (i.e., COVID-19 group) were compared with those of children admitted with non-COVID-19 nonspecific upper respiratory tract infection (i.e., control group). The sleep disturbance scale for children (SDSC) questionnaire was applied to the participants› primary caregivers to analyze their sleep patterns at present and six months before symptom onset and to investigate the impact of COVID-19 on sleep patterns. Results: The entire study cohort consisted of 106 patients. The COVID-19 group included 80 patients, while the control group consisted of 26 patients. The mean serum melatonin levels were 136.72 pg/mL and 172.63 pg/mL in the COVID-19 and control groups, respectively (p = 0.16). There was no significant difference between the groups in terms of 6 subcategories of the SDSC questionnaire regarding the present time and 6 months before symptom onset. The total SDSC scores were also similar in two different evaluation time points described above (p = 0.99) Conclusions: We conclude that COVID-19 did not impact the sleep parameters of children. Serum melatonin levels of all patients were higher than the reference range; however, they were higher in the non-COVID-19 patient group than the COVID-19 group. Since serum melatonin levels were higher than the reference values in children with COVID-19, and this disease is significantly less morbid in children, melatonin may have protective effects against COVID-19.

Indexed as

AdolescentChildCohort StudiesCOVID-19Cross-Sectional StudiesFemaleHumansMaleMelatoninSARS-CoV-2Sleep Wake DisordersSurveys and QuestionnairesMelatoninchildrenCOVID-19Melatoninpediatricsleep

Identifiers

PMID33843171
PMCPMC8569735
OpenAlexW3154881935

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.