Evidence map›Paper›PMID 36240451›Full record

ArticleInternational journal of epidemiology2023

The effect on women's health of extending parental leave: a quasi-experimental registry-based cohort study.

Emilie Courtin, Andreas Rieckmann, Jessica Bengtsson, Vahe Nafilyan, Maria Melchior, Lisa Berkman, Naja Hulvej Rod

Open access · hybridAbstract read
In one paragraph

Article in International journal of epidemiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Observational
  3. 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

7 authors at 5 institutions in 4 countries.

Emilie CourtinDepartment of Public Health, Environments and Society, London School of Hygiene and Tropical Medicine, London, UK.ORCID 0000-0001-5073-7279
Andreas RieckmannDepartment of Public Health, Section of Epidemiology, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0001-8695-2376
Jessica BengtssonDepartment of Public Health, Section of Epidemiology, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0003-1894-909X
Vahe NafilyanDepartment of Public Health, Environments and Society, London School of Hygiene and Tropical Medicine, London, UK.
Maria MelchiorInstitut Pierre Louis d'Epidémiologie et de Santé Publique, INSERM UMR S 1136, Sorbonne University, Paris, France.ORCID 0000-0002-2377-619X
Lisa BerkmanHarvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA.
Naja Hulvej RodDepartment of Public Health, Section of Epidemiology, University of Copenhagen, Copenhagen, Denmark.
University of Copenhagen · DKHarvard University · USInserm · FRKing's College London · GBRoyal Society of Tropical Medicine and Hygiene · GB

Funding

Medical Research Council MR/T032499/1
6 · The paper itself

Abstract

backgroundParental leave policies have been hypothesized to benefit mothers' mental health. We assessed the impact of a 6-week extension of parental leave in Denmark on maternal mental health.

methodsWe linked individual-level data from Danish national registries on maternal sociodemographic characteristics and psychiatric diagnoses. A regression discontinuity design was applied to study the increase in parental leave duration after 26 March 1984. We included women who had given birth between 1 January 1981 and 31 December 1987. Our outcome was a first psychiatric diagnosis following the child's birth, ascertained as the first day of inpatient hospital admission for any psychiatric disorder. We presented cumulative incidences for the 30-year follow-up period and reported absolute risk differences between women eligible for the reform vs not, in 5-year intervals.

resultsIn all, 291 152 women were followed up until 2017, death, emigration or date of first psychiatric diagnosis. The median follow-up time was 29.99 years, corresponding to 10 277 547 person-years at risk. The cumulative incidence of psychiatric diagnoses at 30 years of follow-up was 59.5 (95% CI: 57.4 to 61.6) per 1000 women in the ineligible group and 57.5 (95% CI: 55.6 to 59.4) in the eligible group. Eligible women took on average 32.85 additional days of parental leave (95% CI: 29.20 to 36.49) and had a lower probability of having a psychiatric diagnosis within 5 years [risk difference (RD): 2.4 fewer diagnoses per 1000 women, 95% CI: 1.5 to 3.2] and up to 20 years after the birth (RD: 2.3, 95% CI: 0.4 to 4.2). In subgroup analyses, the risk reduction was concentrated among low-educated, low-income and single women.

conclusionsLonger parental leave may confer mental health benefits to women, in particular to those from disadvantaged backgrounds.

Indexed as

MothersParental LeaveChildCohort StudiesDenmarkFemaleHumansRegistriesWomen's Healthmental disordersParental leavequasi-experimentsocial determinants of healthwomen’s health

Identifiers

PMID36240451
PMCPMC10396408
OpenAlexW4306249925

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.