Evidence map›Paper›PMID 28637734›Full record

Observational studyBMJ open2017

Pregnancy-specific stress, fetoplacental haemodynamics, and neonatal outcomes in women with small for gestational age pregnancies: a secondary analysis of the multicentre Prospective Observational Trial to Optimise Paediatric Health in Intrauterine Growth Restriction.

Terri A Levine, Ruth E Grunau, Ricardo Segurado, Sean Daly, Michael P Geary, Mairead M Kennelly, Keelin O'Donoghue, Alyson Hunter, John J Morrison, Gerard Burke and 5 more

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

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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

15 authors at 11 institutions in 4 countries.

Terri A LevineSchool of Nursing and Midwifery, Queen's University Belfast, Belfast, Northern Ireland.
Ruth E GrunauDepartment of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada.
Ricardo SeguradoUCD CSTAR and School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland.
Sean DalyDepartment of Obstetrics and Gynaecology, Coombe Women and Infants University Hospital, Dublin, Ireland.
Michael P GearyDepartment of Obstetrics and Gynaecology, Rotunda Hospital, Dublin, Ireland.
Mairead M KennellyUniversity College Dublin Centre for Human Reproduction, Coombe Women and Infants University Hospital, Dublin, Ireland.
Keelin O'DonoghueDepartment of Obstetrics and Gynaecology, University College Cork, Cork University Maternity Hospital, Cork, Ireland.
Alyson HunterDepartment of Obstetrics and Gynaecology, Royal Jubilee Maternity Hospital, Belfast, Northern Ireland.
John J MorrisonDepartment of Obstetrics and Gynaecology, National University of Ireland, Galway, Ireland.
Gerard BurkeDepartment of Obstetrics and Gynaecology, Mid-Western Regional Maternity Hospital, Limerick, Ireland.
Patrick DickerDepartment of Epidemiology and Public Health, Royal College of Surgeons in Ireland, Dublin, Ireland.
Elizabeth C TullyDepartment of Obstetrics and Gynaecology, Royal College of Surgeons in Ireland, Dublin, Ireland.
Fergal D MaloneDepartment of Obstetrics and Gynaecology, Royal College of Surgeons in Ireland, Dublin, Ireland.
Fiona A AlderdiceSchool of Nursing and Midwifery, Queen's University Belfast, Belfast, Northern Ireland.
Fionnuala M McAuliffeUCD Perinatal Research Centre, Obstetrics and Gynaecology, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland.
Royal College of Surgeons in Ireland · IEUniversity College Dublin · IEBrigham and Women's Hospital · USCoombe Women & Infants University Hospital · IENational Maternity Hospital · IENenagh Hospital · IEOllscoil na Gaillimhe – University of Galway · IERotunda Hospital · IEUniversity College Cork · IEUniversity of British Columbia · CAUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo examine associations between maternal pregnancy-specific stress and umbilical (UA PI) and middle cerebral artery pulsatility indices (MCA PI), cerebroplacental ratio, absent end diastolic flow (AEDF), birthweight, prematurity, neonatal intensive care unit admission and adverse obstetric outcomes in women with small for gestational age pregnancies. It was hypothesised that maternal pregnancy-specific stress would be associated with fetoplacental haemodynamics and neonatal outcomes.

designThis is a secondary analysis of data collected for a large-scale prospective observational study.

settingThis study was conducted in the seven major obstetric hospitals in Ireland and Northern Ireland.

participantsParticipants included 331 women who participated in the Prospective Observational Trial to Optimise Paediatric Health in Intrauterine Growth Restriction. Women with singleton pregnancies between 24 and 36 weeks gestation, estimated fetal weight <10th percentile and no major structural or chromosomal abnormalities were included. PRIMARY AND SECONDARY OUTCOME MEASURES: Serial Doppler ultrasound examinations of the umbilical and middle cerebral arteries between 20 and 42 weeks gestation, Pregnancy Distress Questionnaire (PDQ) scores between 23 and 40 weeks gestation and neonatal outcomes.

resultsConcerns about physical symptoms and body image at 35-40 weeks were associated with lower odds of abnormal UAPI (OR 0.826, 95% CI 0.696 to 0.979, p=0.028). PDQ score (OR 1.073, 95% CI 1.012 to 1.137, p=0.017), concerns about birth and the baby (OR 1.143, 95% CI 1.037 to 1.260, p=0.007) and concerns about physical symptoms and body image (OR 1.283, 95% CI 1.070 to 1.538, p=0.007) at 29-34 weeks were associated with higher odds of abnormal MCA PI. Concerns about birth and the baby at 29-34 weeks (OR 1.202, 95% CI 1.018 to 1.421, p=0.030) were associated with higher odds of AEDF. Concerns about physical symptoms and body image at 35-40 weeks were associated with decreased odds of neonatal intensive care unit admission (OR 0.635, 95% CI 0.435 to 0.927, p=0.019).

conclusionsThese findings suggest that fetoplacental haemodynamics may be a mechanistic link between maternal prenatal stress and fetal and neonatal well-being, but additional research is required.

Indexed as

Birth WeightPlacental CirculationAdultBody ImageFemaleFetal Growth RetardationGestational AgeHemodynamicsHumansInfant, Small for Gestational AgeIntensive Care, NeonatalMiddle Cerebral ArteryParturitionPregnancyPremature BirthProspective Studiesdoppler ultrasoundmiddle cerebral arteryperinatal mental healthpregnancy-specific stresssmall for gestational ageumbilical artery

Identifiers

PMID28637734
PMCPMC5734406
OpenAlexW2694434183

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.