Evidence map›Paper›PMID 24215899›Full record

ArticleJournal of affective disorders2014

Perinatal factors and the risk of bipolar disorder in Finland.

Roshan Chudal, Andre Sourander, Päivi Polo-Kantola, Susanna Hinkka-Yli-Salomäki, Venla Lehti, Dan Sucksdorff, Mika Gissler, Alan S Brown

Open access · greenAbstract read
In one paragraph

Article in Journal of affective disorders, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
7.4field-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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Birth by cesarean section and mood disorders among adolescents of a birth cohort study in northern Brazil.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2021
    Article
  12. Review
  13. The role of pre-, peri-, and postnatal risk factors in bipolar disorder and adult ADHD.Journal of neural transmission (Vienna, Austria : 1996) · 2019
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review
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 4 institutions in 3 countries.

Roshan ChudalDepartment of Child Psychiatry, University of Turku, Finland. Electronic address: roschu@utu.fi.
Andre SouranderDepartment of Child Psychiatry, University of Turku, Finland; Department of Child Psychiatry, Turku University Hospital, Finland; Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York State Psychiatric Institute, New York, NY, USA; Regional Centre for Child and Youth Mental Health and Child Welfare, University of Tromsø, Norway.
Päivi Polo-KantolaDepartment of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland.
Susanna Hinkka-Yli-SalomäkiDepartment of Child Psychiatry, University of Turku, Finland.
Venla LehtiDepartment of Child Psychiatry, University of Turku, Finland.
Dan SucksdorffDepartment of Child Psychiatry, University of Turku, Finland.
Mika GisslerDepartment of Child Psychiatry, University of Turku, Finland; Nordic School of Public Health, Gothenburg, Sweden; National Institute for Health and Welfare, Finland.
Alan S BrownDepartment of Psychiatry, Columbia University College of Physicians and Surgeons, New York State Psychiatric Institute, New York, NY, USA; Department of Epidemiology, Columbia University, Mailman School of Public Health, New York, NY, USA.
University of Turku · FIColumbia University · USNational Institutes of Health · USNew York State Psychiatric Institute

Funding

Epidemiology of Prenatal Factors and Adult PsychopathologyK02MH065422 · NIMH · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BROWN, ALAN STEWART · 2003 to 2012
$1.2M
Medical Research Council MR/K006525/1NIMH NIH HHS K02 MH065422NIMH NIH HHS MH065422-10
6 · The paper itself

Abstract

backgroundComplications during the perinatal period have been associated with neurodevelopmental disorders like schizophrenia and autism. However, similar studies on bipolar disorder (BPD) have been limited and the findings are inconsistent. The aim of this study was to examine the association between perinatal risk factors and BPD.

methodsThis nested case-control study, based on the Finnish Prenatal Study of Bipolar Disorders (FIPS-B), identified 724 cases and 1419 matched controls from population based registers. Conditional logistic regression was used to examine the associations between perinatal factors and BPD adjusting for potential confounding due to maternal age, psychiatric history and educational level, place of birth, number of previous births and maternal smoking during pregnancy.

resultsChildren delivered by planned cesarean section had a 2.5-fold increased risk of BPD (95% CI: 1.32-4.78, P<0.01). No association was seen between other examined perinatal risk factors and BPD. LIMITATIONS: The limitations of this study include: the restriction in the sample to treated cases of BPD in the population, and usage of hospital based clinical diagnosis for case ascertainment. In addition, in spite of the large sample size, there was low power to detect associations for certain exposures including the lowest birth weight category and pre-term birth.

conclusionsBirth by planned cesarean section was associated with risk of BPD, but most other perinatal risk factors examined in this study were not associated with BPD. Larger studies with greater statistical power to detect less common exposures and studies utilizing prospective biomarker-based exposures are necessary in the future.

Indexed as

Birth WeightGestational AgeAdolescentAdultBipolar DisorderCase-Control StudiesCesarean SectionChildChild, PreschoolFemaleFinlandHumansLogistic ModelsMalePregnancyPregnancy ComplicationsBipolar disorderFetal growthGestational ageObstetric complicationsPerinatal complications

Identifiers

PMID24215899
PMCPMC3947252
OpenAlexW2025621784

What OpenQuestion holds

Textmetadata
LicenceTDM
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.