Evidence map›Paper›PMID 24684956›Full record

ArticleFertility and sterility2014

Differences in ovarian hormones in relation to parity and time since last birth.

Emily S Barrett, Lauren E Parlett, Gayle C Windham, Shanna H Swan

Abstract read
In one paragraph

Article in Fertility and sterility, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
5.1field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 59 citations in OpenAlex.

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  16. Parity and the risk of incident dementia: a COSMIC study.Epidemiology and psychiatric sciences · 2020
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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

4 authors at 4 institutions in 1 country.

Emily S BarrettDepartment of Obstetrics and Gynecology, School of Medicine and Dentistry, University of Rochester, Rochester, New York. Electronic address: emily_barrett@urmc.rochester.edu.
Lauren E ParlettDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland.
Gayle C WindhamDivision of Environmental and Occupational Disease Control, California Department of Public Health, Richmond, California.
Shanna H SwanDepartment of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.
California Department of Public Health · USIcahn School of Medicine at Mount Sinai · USJohns Hopkins University · USUniversity of Rochester · US

Funding

The Mount Sinai Transdisciplinary Center on Early Environmental ExposuresP30ES023515 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI Maria Jose Rosa · 2014 to 2026
$21.3M
Women's Health and the Environment over the Entire Lifespan (WHEEL)K12ES019852 · NIEHS · UNIVERSITY OF ROCHESTER · PI CORY-SLECHTA, DEBORAH A · 2010 to 2014
$1.8M
NIEHS NIH HHS K12 ES019852NIEHS NIH HHS P30 ES023515PHS HHS ESO 4699PHS HHS ESO 5707PHS HHS ESO 6198
6 · The paper itself

Abstract

objectiveTo examine ovarian function in relation to parity and time since last birth.

designCross-sectional study.

settingHealth-care program in California. PATIENT(S): 346 naturally cycling women, aged 18 to 39 years. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Mean follicular urinary estradiol metabolite concentration (E1C) (cycle days -8 to -1), mean luteal progesterone metabolite concentration (PdG) (days 0 to +10), and cycle phase lengths in ovulatory cycles. RESULT(S): After the women had collected daily urine samples for up to eight menstrual cycles, we measured the E1C and PdG using enzyme-linked immunoassay. The cycle phase lengths were calculated from the hormone profiles and daily diaries. Women who had given birth within the previous 3 years had lower E1C than the nulliparous women and women who last given birth >3 years earlier. Among the parous women, E1C was positively associated with the time since last birth. Women who last gave birth >3 years earlier had longer follicular phases than the nulliparous women. There were no associations between parity and PdG or luteal phase length. CONCLUSION(S): Our cross-sectional data suggest that ovarian function differs in nulliparous and parous women and is positively associated with the time since last birth. Longitudinal research is needed to explore within-woman changes in ovarian function prepartum and postpartum.

Indexed as

ParityAdolescentAdultBiomarkersCaliforniaCross-Sectional StudiesEstradiolFemaleHumansMenstrual CycleOvaryPregnancyProgesteroneTime FactorsYoung AdultBiomarkersEstradiolProgesteroneEstradiolfecunditymenstrual cyclemotherhoodovarian function

Identifiers

PMID24684956
PMCPMC4041832
OpenAlexW2013917901

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.