Evidence map›Paper›PMID 29902220›Full record

ArticlePloS one2018

Timing of singleton births by onset of labour and mode of birth in NHS maternity units in England, 2005-2014: A study of linked birth registration, birth notification, and hospital episode data.

Peter Martin, Mario Cortina-Borja, Mary Newburn, Gill Harper, Rod Gibson, Miranda Dodwell, Nirupa Dattani, Alison Macfarlane

Abstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Time of day of induction impacts the total duration of labor.American journal of obstetrics & gynecology MFM · 2026
    Article
  5. Perinatal midwifery care demand in a tertiary hospital: A time-series analysis.International journal of nursing studies advances · 2025
    Article
  6. Article
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  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Integrative Analysis of Rhythmicity: From Biology to Urban Environments and Sustainability.International journal of environmental research and public health · 2022
    Review
  15. Observational
  16. Article
  17. Article
  18. 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

8 authors.

Peter MartinCentre for Maternal and Child Health Research, School of Health Sciences, City, University of London, London, United Kingdom.ORCID 0000-0003-4638-0638
Mario Cortina-BorjaPopulation, Policy and Practice Programme, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom.ORCID 0000-0003-0627-2624
Mary NewburnCentre for Maternal and Child Health Research, School of Health Sciences, City, University of London, London, United Kingdom.
Gill HarperCentre for Maternal and Child Health Research, School of Health Sciences, City, University of London, London, United Kingdom.
Rod GibsonRod Gibson Associates Ltd., Wotton-under-Edge, United Kingdom.ORCID 0000-0001-8785-8410
Miranda DodwellCentre for Maternal and Child Health Research, School of Health Sciences, City, University of London, London, United Kingdom.ORCID 0000-0001-7398-3093
Nirupa DattaniCentre for Maternal and Child Health Research, School of Health Sciences, City, University of London, London, United Kingdom.
Alison MacfarlaneCentre for Maternal and Child Health Research, School of Health Sciences, City, University of London, London, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMaternity care has to be available 24 hours a day, seven days a week. It is known that obstetric intervention can influence the time of birth, but no previous analysis at a national level in England has yet investigated in detail the ways in which the day and time of birth varies by onset of labour and mode of giving birth.

methodWe linked data from birth registration, birth notification, and Maternity Hospital Episode Statistics and analysed 5,093,615 singleton births in NHS maternity units in England from 2005 to 2014. We used descriptive statistics and negative binomial regression models with harmonic terms to establish how patterns of timing of birth vary by onset of labour, mode of giving birth and gestational age.

resultsThe timing of birth by time of day and day of the week varies considerably by onset of labour and mode of birth. Spontaneous births after spontaneous onset are more likely to occur between midnight and 6am than at other times of day, and are also slightly more likely on weekdays than at weekends and on public holidays. Elective caesarean births are concentrated onto weekday mornings. Births after induced labours are more likely to occur at hours around midnight on Tuesdays to Saturdays and on days before a public holiday period, than on Sundays, Mondays and during or just after a public holiday.

conclusionThe timing of births varies by onset of labour and mode of birth and these patterns have implications for midwifery and medical staffing. Further research is needed to understand the processes behind these findings.

Indexed as

Birth CertificatesDelivery, ObstetricEnglandFemaleGestational AgeHospital RecordsHospitals, MaternityHumansInfant, NewbornLabor OnsetMaleMedical ErrorsMedical Record LinkageParturitionPregnancyTime Factors

Identifiers

PMID29902220
PMCPMC6002087

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Registered trials

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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.