Evidence map›Paper›PMID 32985075›Full record

ArticleBJOG : an international journal of obstetrics and gynaecology2021

Parity-related variation in cortisol concentrations in hair during pregnancy.

I Marteinsdottir, G Sydsjö, Å Faresjö, E Theodorsson, A Josefsson

Abstract read
In one paragraph

Article in BJOG : an international journal of obstetrics and gynaecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Article
  2. Observational
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Breastfeeding and cortisol in hair in children.International breastfeeding journal · 2021
    Article
  9. Parity-related variation in cortisol concentrations in hair during pregnancy.BJOG : an international journal of obstetrics and gynaecology · 2021
    Article
  10. 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

5 authors.

I MarteinsdottirDepartment of Medicine and Optometry, Faculty of Health and Life Sciences, Linnaeus University, Kalmar, Sweden.
G SydsjöFaculty of Medicine and Health Sciences, Department of Obstetrics and Gynaecology in Linköping and Division of Children's and Women's Health, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
Å FaresjöDivision of Society and Health, Department of Health, Medicine and Caring Sciences. Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden.
E TheodorssonDivision of Clinical Chemistry, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden.
A JosefssonFaculty of Medicine and Health Sciences, Department of Obstetrics and Gynaecology in Linköping and Division of Children's and Women's Health, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.ORCID https://orcid.org/0000-0003-3238-3811

Funding

Forskningsrådet i Sydöstra Sverige 472721
6 · The paper itself

Abstract

objectiveTo investigate hair cortisol concentrations (HCC) monthly in pregnant women and to explore the effect of parity.

designProspective cohort study from gestational week (GW) 26, at childbirth and postpartum.

settingAn antenatal care clinic in southeast Sweden. SAMPLE: 390 pregnant women.

methodsCortisol was measured using radioimmunoassay in methanol extracts of ground hair samples.

main outcome measuresHair cortisol concentrations.

resultsBoth primi- and multiparae exhibited an increase in HCC throughout pregnancy. Primiparae had significantly higher HCC in the latter part of the last trimester compared with multiparae (1 month P = 0.003, 2 months P = 0.038). The use of psychotropic medication in the first trimester correlated to HCC postpartum (P < 0.001). HCC in GW 14-17 was associated with HCC in GW 18-21 (primiparae and multiparae, P < 0.001), GW 22-25 (primiparae P = 0.036, multiparae P = 0.033), and 2 months postpartum (primiparae P = 0.049). HCC in GW 18-21 was associated with GW 22-25 in both primiparae (P < 0.001) and multiparae (P < 0.001) as well as 2 months prior to childbirth among primiparae (<0.037). In general, all estimates of HCC in pregnancy and postpartum showed a significant association between HCC for a specific month and the HCC in the previous month (all P < 0.001), except for the association of HCC among primiparae in GW 22-25 and 3 months prior to childbirth.

conclusionsIncreased cortisol concentrations in hair were observed during pregnancy, which decreased 3 months prior to childbirth in multiparae. The results indicate a quicker suppression of the hypothalamic CRH (corticotropin-releasing hormone) production by placenta CRH in multiparous women. TWEETABLE ABSTRACT: Multiparae have a quicker suppression of hypothalamic CRH production by placenta CRH during pregnancy compared to primiparae.

Indexed as

AdolescentAdultBiomarkersFemaleHairHumansHydrocortisoneHypothalamo-Hypophyseal SystemLinear ModelsParityPituitary-Adrenal SystemPostpartum PeriodPregnancyProspective StudiesRadioimmunoassayYoung AdultBiomarkersHydrocortisoneCortisolhairhypothalamic-pituitary-adrenal pregnancy axiswomen

Identifiers

PMID32985075
PMCPMC7894509

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Registered trials

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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.