Evidence map›Paper›PMID 30282682›Full record

ArticleBMJ open2018

Reduced prevalence of small-for-gestational-age and preterm birth for women of low socioeconomic position: a population-based cohort study comparing antenatal midwifery and physician models of care.

Daphne N McRae, Patricia A Janssen, Saraswathi Vedam, Maureen Mayhew, Deborah Mpofu, Ulrich Teucher, Nazeem Muhajarine

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 35 citations in OpenAlex.

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  10. The effect of changing screening practices and demographics on the incidence of gestational diabetes in British Columbia, 2005-2019.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2023
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  11. Perinatal outcomes of midwife-led care, stratified by medical risk: a retrospective cohort study from British Columbia (2008-2018).CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2023
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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

7 authors at 3 institutions in 1 country.

Daphne N McRaeSchool of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.ORCID 0000-0001-8113-9028
Patricia A JanssenSchool of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.
Saraswathi VedamBirth Place Lab, Department of Family Practice, University of British Columbia, Vancouver, British Columbia, Canada.
Maureen MayhewSchool of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.
Deborah MpofuSaskatoon City Hospital, Saskatoon Health Region, Saskatoon, Saskatchewan, Canada.
Ulrich TeucherDepartment of Psychology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Nazeem MuhajarineDepartment of Community Health and Epidemiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
University of British Columbia · CAUniversity of Saskatchewan · CASaskatchewan Health Authority · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveOur aim was to investigate if antenatal midwifery care was associated with lower odds of small-for-gestational-age (SGA) birth, preterm birth (PTB) or low birth weight (LBW) compared with general practitioner (GP) or obstetrician (OB) models of care for women of low socioeconomic position.

settingThis population-level, retrospective cohort study used province-wide maternity, medical billing and demographic data from British Columbia, Canada.

participantsOur study included 57 872 pregnant women, with low socioeconomic position, who: were residents of British Columbia, Canada, carried a singleton fetus, had low to moderate medical/obstetric risk, delivered between 2005 and 2012 and received medical insurance premium assistance. PRIMARY AND SECONDARY OUTCOME MEASURES: We report rates, adjusted ORs (aOR), and 95% CIs for the primary outcome, SGA birth (<the 10th percentile), and secondary outcomes, PTB (<37 weeks' completed gestation) and LBW (<2500 g).

resultsOur sample included 4705 midwifery patients, 45 114 GP patients and 8053 OB patients. Odds of SGA birth were reduced for patients receiving antenatal midwifery versus GP (aOR 0.71, 95% CI 0.62 to 0.82) or OB care (aOR 0.59, 95% CI 0.50 to 0.69). Odds of PTB were lower for antenatal midwifery versus GP (aOR 0.74, 95% CI 0.63 to 0.86) or OB patients (aOR 0.53, 95% CI 0.45 to 0.62). Odds of LBW were reduced for midwifery versus GP (aOR 0.66, 95% CI 0.53 to 0.82) or OB patients (aOR 0.43, 95% CI 0.34 to 0.54).

conclusionAntenatal midwifery care in British Columbia, Canada, was associated with lower odds of SGA birth, PTB and LBW, for women of low socioeconomic position, compared with physician models of care. Results support the development of policy to ensure antenatal midwifery care is available and accessible for women of low socioeconomic position. Future research is needed to determine the underlying mechanisms linking midwifery care to better birth outcomes for women of low socioeconomic position.

Indexed as

Infant, Small for Gestational AgeMidwiferySocioeconomic FactorsAdolescentAdultBritish ColumbiaFemaleGestational AgeHumansInfant, Low Birth WeightInfant, NewbornLogistic ModelsPregnancyPregnancy ComplicationsPregnancy OutcomePremature Birthbirth outcomesfetal medicinematernal medicinemidwiferyquality in healthcaresocioeconomic status

Identifiers

PMID30282682
PMCPMC6169769
OpenAlexW2895082050

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.