Evidence map›Paper›PMID 24714814›Full record

ArticleBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica2014

Chronotype ontogeny related to gender.

L L Duarte, L Menna-Barreto, M A L Miguel, F Louzada, J Araújo, M Alam, R Areas, M Pedrazzoli

Open access · goldAbstract read
In one paragraph

Article in Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 3 pooled it
2.8field-weighted citation impact, top 9% 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

39 citing papers in PubMed, 3 syntheses or guidelines pooled it, 102 citations in OpenAlex.

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  18. Sex differences in deterioration of sleep properties associated with aging: a 12-year longitudinal cohort study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021
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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 5 institutions in 1 country.

L L DuarteCentro de Ciências da Saúde, Universidade Federal do Recôncavo da Bahia, Santo Antônio de Jesus, BA, Brasil.
L Menna-BarretoEscola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo, SP, Brasil.
M A L MiguelEscola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo, SP, Brasil.
F LouzadaSetor de Ciências Biológicas, Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, PR, Brasil.
J AraújoDepartamento de Fisiologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN, Brasil.
M AlamDepartamento de Fisiologia e Farmacologia, Instituto de Biologia, Universidade Federal de Pelotas, Pelotas, RS, Brasil.
R AreasEscola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo, SP, Brasil.
M PedrazzoliEscola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo, SP, Brasil.
Universidade de São Paulo · BRUniversidade Federal de Pelotas · BRUniversidade Federal do Paraná · BRUniversidade Federal do Recôncavo da Bahia · BRUniversidade Federal do Rio Grande do Norte · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chronotype is an established concept designed to identify distinct phase relationships between the expression of circadian rhythms and external synchronizers in humans. Although it has been widely accepted that chronotype is subjected to ontogenetic modulation, there is no consensus on the interaction between age and gender. This study aimed to determine the relationship between age- and gender-related changes in the morningness-eveningness character in a large sample of people. A total of 14,650 volunteers were asked to complete the Brazilian version of the Horne and Östberg chronotype questionnaire. The data demonstrated that, on average, women were more morning-oriented than men until the age of 30 and there were no significant differences between men and women from 30 to 45 years of age. In contrast to the situation observed until the age of 30, women older than 45 years were more evening-oriented than men. These results suggest that the ontogenetic development of the circadian timekeeping system is more plastic in men, as represented by the larger amplitude of chronotype changes throughout their aging process. The phase delay of adolescence and phase advance of the elderly seem to be phenomena that are more markedly present in men than in women. Thus, our data, for the first time, provide support that sharply opposes the view that there is a single path toward morningness as a function of age, regardless of gender.

Indexed as

Age FactorsSex FactorsActivities of Daily LivingAdolescentAdultAgedAnalysis of VarianceBrazilCircadian RhythmFemaleHuman DevelopmentHumansMaleMiddle AgedSurveys and Questionnaires

Identifiers

PMID24714814
PMCPMC4075295
OpenAlexW2046580136

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.