Evidence map›Paper›PMID 34104337›Full record

ReviewSleep science (Sao Paulo, Brazil)

Prevalence of insomnia in shift workers: a systematic review.

Renata Silva Brito, Cristiane Dias, Agenor Afonso Filho, Cristina Salles

Open access · greenAbstract readReview
In one paragraph

Review in Sleep science (Sao Paulo, Brazil). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 35 citations in OpenAlex.

  1. Trial
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  9. Review
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  13. The burden of insomnia among public health sector nurses in KwaZulu-Natal, South Africa.The South African journal of psychiatry : SAJP : the journal of the Society of Psychiatrists of South Africa · 2025
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  14. Article
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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

4 authors at 2 institutions in 2 countries.

Renata Silva BritoEscola Bahiana de Medicina e Saúde Pública, Medicina - Salvador - Bahia - Brazil.
Cristiane DiasEscola Bahiana de Medicina e Saúde Pública, Medicina - Salvador - Bahia - Brazil.
Agenor Afonso FilhoClinos Clínica de Neurologia e Otorrinolaringologia, Medicina - Santo Antônio de Jesus - Bahia - Brazil.
Cristina SallesEscola Bahiana de Medicina e Saúde Pública, Medicina - Salvador - Bahia - Brazil.
Escola Bahiana de Medicina e Saúde Pública · BRHospital de Santo António · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Insomnia is a sleep disorder of high prevalence with somatic and psychic repercussions. The present study aimed to describe the prevalence of insomnia in shift workers, as well as the associated variables: gender, age, marital status, profession and shift work schedule. A systematic review was performed using the descriptors "insomnia" AND "shift work", in the PubMed, SciELO and LILACS databases, including studies that presented frequency of insomnia in shift workers, published between 2000 and 2020, in English or Portuguese, only in individuals over 18-years-old. Review articles, meta-analyzes, studies without socioeconomic information, articles without abstract and articles with participants who presented other comorbidities that justified presence of insomnia or pregnant women were excluded. From 480 studies identified, 5 were included in the analysis, with a total sample of 10,141 participants, of whom 4,183 were shift workers. The prevalence of insomnia in shift workers ranged from 12.8% to 76.4%, higher than estimated for general population. Moreover, a higher prevalence was observed among women and singles, and there was no significant variation with age and profession. On the other hand, a relationship between shift work schedule and onset of insomnia still seems controversial.

Indexed as

Insomnia PrevalenceShift Work ScheduleSleep Initiation and Maintenance DisordersWorkers

Identifiers

PMID34104337
PMCPMC8157778
OpenAlexW3139224425

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.