Evidence map›Paper›PMID 40951401›Full record

ArticleFrontiers in public health2025

Effects of a 12-hour shift system on sleep and cardiovascular health of male machine and plant operators - a longitudinal study over four years.

Reingard Seibt, Steffi Kreuzfeld, Bettina Hunger

Abstract read
In one paragraph

Article in Frontiers in public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

3 authors.

Reingard SeibtInstitute for Occupational, Social and Environmental Medicine of the Rostock University Medical Centre, University of Rostock, Rostock, Germany.
Steffi KreuzfeldInstitute for Occupational, Social and Environmental Medicine of the Rostock University Medical Centre, University of Rostock, Rostock, Germany.
Bettina HungerOffice of ASD*BGN Coordination Berlin, German Social Accident Insurance Institution for the Foodstuffs and Catering Industry (BGN), Government Safety Organization Foods and Restaurants, Mannheim, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Data on the risks and effects of shift systems involving night work are inconsistent. In particular, there is a lack of longitudinal studies on the impact of 12-h shift systems on indicators of sleep, cardiovascular health and work-life balance. Therefore, this study compared machine and plant operators (MPO) who worked in a rotating 12-h shift system or only during the day, both at baseline (T1) and at follow-up 4 years later (T5). Methods: Data were collected annually and included a questionnaire on shift work and sleep as well as a cardiovascular screening programme. The sample for analysis consisted of 45 shift (SW) and 30 day workers (DW) (mean age T1: 40 years). Sleep behaviour was examined by sleep quality and quantity (PSQI score), cardiovascular health by blood pressure, body mass index (BMI), blood lipids, glycosylated haemoglobin (HbA1c) and PROCAM score. Work-life balance was assessed on the basis of life satisfaction and impairments. Analyses of covariance with repeated measures were used to determine longitudinal changes in the indicators between T1 and T5. Results: At T1, SW showed significantly poorer sleep quality ( Conclusion: At T5, the 12-h shift system demonstrably changed sleep behaviour but not cardiovascular health. Sleep deficits could not be compensated. The 12-h shift system seems to offer advantages for work-life balance.

Indexed as

Cardiovascular DiseasesShift Work ScheduleSleepWork Schedule ToleranceAdultHumansLongitudinal StudiesMaleMiddle AgedSleep QualitySurveys and QuestionnairesWork-Life Balanceday workhealthlongitudinal sectionshift worksleepwork-life balance

Identifiers

PMID40951401
PMCPMC12422938

What OpenQuestion holds

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LicenceCC BY
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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.