Evidence map›Paper›PMID 33028896›Full record

ArticleScientific reports2020

Evening types have social jet lag and metabolic alterations in school-age children.

Nuria Martínez-Lozano, Gloria Maria Barraco, Rafael Rios, Maria José Ruiz, Asta Tvarijonaviciute, Paul Fardy, Juan Antonio Madrid, Marta Garaulet

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
3.1field-weighted citation impact, top 7% 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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 54 citations in OpenAlex.

  1. Pooled it
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  3. Bedsharing sleep characteristics in children with mild sleep-disordered breathing.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Nuria Martínez-LozanoDepartment of Physiology, University of Murcia, IMIB-Arrixaca, CP 30100, Murcia, Spain.
Gloria Maria BarracoDepartment of Physiology, University of Murcia, IMIB-Arrixaca, CP 30100, Murcia, Spain.
Rafael RiosHealth Area of Lorca, Lorca, Murcia, Spain.
Maria José RuizHealth Area of Lorca, Lorca, Murcia, Spain.
Asta TvarijonaviciuteDepartment of Physiology, University of Murcia, IMIB-Arrixaca, CP 30100, Murcia, Spain.
Paul FardyDepartment of Physiology, University of Murcia, IMIB-Arrixaca, CP 30100, Murcia, Spain.
Juan Antonio MadridDepartment of Physiology, University of Murcia, IMIB-Arrixaca, CP 30100, Murcia, Spain.
Marta GarauletDepartment of Physiology, University of Murcia, IMIB-Arrixaca, CP 30100, Murcia, Spain. garaulet@um.es.
Universidad de Murcia · ESBrigham and Women's Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chronotype has been mostly assessed with subjective scales. Objective assessment has been undertaken with actigraphy, although problems may occur in classifying chronotype. The aims of the study were to assess chronotype in school-age children using a novel integrative measurement (TAP) derived from non-invasive assessments of wrist temperature (T) physical activity (A) and body position (P) and to explore associations between chronotype, sleep disturbances, and metabolic components. Four-hundred-thirty-two children of 8-12 years were recruited from a Mediterranean area of Spain. Measurements were: (a) Chronotype objectively (7-day-rhythms of TAP) and subjectively measured (Munich-chronotype-self-reported questionnaire); (b) sleep rhythms and light exposition; (c) 7-day-diaries of food intake; (d) anthropometry and metabolic parameters; (e) academic scores. TAP acrophase was able to assess eveningness. As compared to more morning-types, more evening-types displayed lower amplitude in temperature rhythms, increased physical activity in the evening, delayed sleep and midpoint of intake and had more frequent social jet lag (P < 0.05). More evening-types had higher light intensity at 2 h before sleep and lower melatonin values (01:00 h). Eveningness associated with higher BMI and metabolic risk (higher values of insulin, glucose, triglycerides and cholesterol). Evening-types presented better grades in art. In conclusion, more evening-types, as objectively assessed, presented sleep alterations, social jet lag, obesity and higher metabolic risk.

Indexed as

Academic SuccessIndividualitySocial BehaviorActigraphyChildCholesterolCircadian RhythmEnergy MetabolismExerciseFemaleGlucoseHumansInsulinMaleMelatoninSalivaCholesterolGlucoseInsulinMelatoninTriglycerides

Identifiers

PMID33028896
PMCPMC7541646
OpenAlexW3091822504

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.