Evidence map›Paper›PMID 30231019›Full record

ArticlePloS one2018

Combined exposure to lifting and psychosocial strain at work and adverse pregnancy outcomes-A study in the Danish National Birth Cohort.

Camilla Sandal Sejbaek, Hans Bay, Ann Dyreborg Larsen, Petter Kristensen, Vivi Schlünssen, Anne-Marie Nybo Andersen, Jens Peter Bonde, Mette Juhl, Karin Sørig Hougaard

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 11% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

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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

9 authors at 6 institutions in 2 countries.

Camilla Sandal SejbaekNational Research Centre for the Working Environment, Copenhagen, Denmark.ORCID 0000-0001-5869-6221
Hans BayNational Research Centre for the Working Environment, Copenhagen, Denmark.
Ann Dyreborg LarsenNational Research Centre for the Working Environment, Copenhagen, Denmark.
Petter KristensenDepartment of Occupational Medicine and Epidemiology, National Institute of Occupational Health, Oslo, Norway.
Vivi SchlünssenNational Research Centre for the Working Environment, Copenhagen, Denmark.
Anne-Marie Nybo AndersenDepartment of Public Health, Section of Epidemiology, University of Copenhagen, Copenhagen, Denmark.
Jens Peter BondeDepartment of Occupational and Environmental Medicine, Bispebjerg Hospital, Copenhagen, Denmark.
Mette JuhlFaculty of Health and Technology, Department of Nutrition and Midwifery, Metropolitan University College, Copenhagen, Denmark.
Karin Sørig HougaardNational Research Centre for the Working Environment, Copenhagen, Denmark.
National Research Centre for the Working Environment · DKUniversity of Copenhagen · DKAarhus University · DKBispebjerg Hospital · DKMetropolitan University College · DKNational Institute of Occupational Health · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have investigated physical and psychosocial job exposures separately in relation to foetal growth. We therefore investigated if occupational lifting and psychosocial job strain interact to affect foetal growth and gestational length. We hypothesised that heavy lifting and high job strain would increase the risk of impacted foetal growth (small or large for gestational age) and preterm birth.

methodsThe cohort included 47,582 pregnancies from the Danish National Birth Cohort (1996-2002), where the woman was pregnant at 22 gestational weeks (GW), expected one child and worked ≥30 hours/week. Information on occupational lifting and psychosocial job strain was derived from an interview (16±3.0 GW). Data to calculate small and large for gestational age (SGA/LGA) and gestational length was retrieved from the Medical Birth Register. Interaction between lifting and job strain (Karasek's model) was analysed by multinomial logistic regression.

resultsOverall, the adjusted regression analysis showed statistically significant interaction between lifting and job strain for SGA and LGA. For each additional 250 kg lifted/day, high strain women (high Demand/low Control) had increased odds of giving birth to a LGA-child (OR = 1.15; 95% CI 1.06-1.26), whereas women in the active group (high Demand/high Control) had increased odds of giving birth to a SGA child (OR = 1.12; 95% CI 1.03-1.23). When women lifting ≤1000 kg/day were excluded in the sensitivity analyses the interaction between lifting and job strain became insignificant. No interaction of lifting and job strain was found for gestational length.

conclusionsThe main findings may give some support to our hypothesis, as lifting in combination high with job strain increased the risk of giving birth to a LGA child. This finding was, however, not supported in the sensitivity analysis and no association of the interaction was found relative to gestational length.

Indexed as

LiftingAdultBirth WeightDenmarkFemaleGestational AgeHumansInfant, NewbornLogistic ModelsOccupational DiseasesPregnancyPregnancy ComplicationsPregnancy OutcomeStress, Psychological

Identifiers

PMID30231019
PMCPMC6145591
OpenAlexW2890950809

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.