Evidence map›Paper›PMID 30655596›Full record

ArticleJournal of perinatology : official journal of the California Perinatal Association2019

Maternal parity and functional contractility of human myometrium in vitro in the third trimester of pregnancy.

Gillian A Ryan, Sarah M Nicholson, Denis J Crankshaw, John J Morrison

Abstract read
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In one paragraph

Article in Journal of perinatology : official journal of the California Perinatal Association, 2019. 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
1.0field-weighted citation impact, top 23% 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, 7 citations in OpenAlex.

  1. Cellulose Plant-Derived Scaffolds as a Tool for Myometrium Modeling.International journal of molecular sciences · 2025
    Article
  2. Article
  3. 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

4 authors at 1 institution in 1 country.

Gillian A RyanDepartment of Obstetrics and Gynecology, National University of Ireland Galway, Galway University Hospital, Galway, Ireland. gillian.ryan@nuigalway.ie.
Sarah M NicholsonDepartment of Obstetrics and Gynecology, National University of Ireland Galway, Galway University Hospital, Galway, Ireland.
Denis J CrankshawDepartment of Obstetrics and Gynecology, National University of Ireland Galway, Galway University Hospital, Galway, Ireland.ORCID http://orcid.org/0000-0003-0381-9719
John J MorrisonDepartment of Obstetrics and Gynecology, National University of Ireland Galway, Galway University Hospital, Galway, Ireland.
Ollscoil na Gaillimhe – University of Galway · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveIt is well established that the duration of the first and second stages of labor are shorter in parous women than in their nulliparous counterparts, a phenomenon not well understood. The aim was to examine the effect of maternal parity on contractile parameters of human myometrium.

designMyometrial strips were excised from n = 74 women at cesarean delivery and recordings of contractile activity analyzed and compared across three clinical groups: 1. No previous delivery (P0); 2. One previous delivery (P1); 3. Greater than one previous delivery (P>1).

resultsThere was a trend towards greater mean contractile force in the P>1 group than the P1 and P0 groups (P = 0.412). Frequency of contractions was less in the P1 group than in the P0 and P>1 groups(P = 0.027). No differences were observed in relation to all other parameters.

conclusionExcluding frequency, no intrinsic differences were observed in the functional parameters of human uterine contractions in relation to parity.

Indexed as

ParityAdultCesarean SectionFemaleHumansMyometriumPregnancyPregnancy Trimester, ThirdTissue Culture TechniquesUterine ContractionYoung Adult

Identifiers

PMID30655596
OpenAlexW2909247405

What OpenQuestion holds

Textmetadata
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.