Evidence map›Paper›PMID 37311636›Full record

ArticleBMJ open2023

Neonatal mortality in NHS maternity units by timing and mode of birth: a retrospective linked cohort study.

Lucy Carty, Christopher Grollman, Rachel Plachcinski, Mario Cortina-Borja, Alison Macfarlane

Abstract read
In one paragraph

Article in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. 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.

Lucy CartyDepartment of Midwifery, City, University of London, London, UK.
Christopher GrollmanDepartment of Midwifery, City, University of London, London, UK.ORCID 0000-0002-6950-1837
Rachel PlachcinskiDepartment of Midwifery, City, University of London, London, UK.
Mario Cortina-BorjaUCL Great Ormond Street Institute of Child Health, University College London, London, UK.
Alison MacfarlaneDepartment of Midwifery, City, University of London, London, UK a.j.macfarlane@city.ac.uk.ORCID 0000-0003-0977-7214

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare neonatal mortality in English hospitals by time of day and day of the week according to care pathway.

designRetrospective cohort linking birth registration, birth notification and hospital episode data.

settingNational Health Service (NHS) hospitals in England.

participants6 054 536 liveborn singleton births from 2005 to 2014 in NHS maternity units in England.

main outcome measuresNeonatal mortality.

resultsAfter adjustment for confounders, there was no significant difference in the odds of neonatal mortality attributed to asphyxia, anoxia or trauma outside of working hours compared with working hours for spontaneous births or instrumental births. Stratification of emergency caesareans by onset of labour showed no difference in mortality by birth timing for emergency caesareans with spontaneous or induced onset of labour. Higher odds of neonatal mortality attributed to asphyxia, anoxia or trauma out of hours for emergency caesareans without labour translated to a small absolute difference in mortality risk.

conclusionsThe apparent 'weekend effect' may result from deaths among the relatively small numbers of babies who were coded as born by emergency caesarean section without labour outside normal working hours. Further research should investigate the potential contribution of care-seeking and community-based factors as well as the adequacy of staffing for managing these relatively unusual emergencies.

Indexed as

Cesarean SectionState MedicineAsphyxiaCohort StudiesFemaleHumansHypoxiaInfantInfant MortalityInfant, NewbornPregnancyRetrospective StudiesHEALTH SERVICES ADMINISTRATION & MANAGEMENTNEONATOLOGYOBSTETRICS

Identifiers

PMID37311636
PMCPMC10277044

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.