Evidence map›Paper›PMID 42144015›Full record

ArticlePaediatric and perinatal epidemiology2026

The Methodological Pitfalls Complicating the Analysis of Early Term Births.

Ye'elah E Berman, John P Newnham, Dorota A Doherty, Sarah V Ward

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Paediatric and perinatal epidemiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

  1. Article
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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

4 authors.

Ye'elah E BermanDivision of Obstetrics and Gynaecology, University of Western Australia, King Edward Memorial Hospital, Perth, WA, Australia.ORCID https://orcid.org/0000-0002-5632-2602
John P NewnhamDivision of Obstetrics and Gynaecology, University of Western Australia, King Edward Memorial Hospital, Perth, WA, Australia.ORCID https://orcid.org/0000-0001-9983-7457
Dorota A DohertyDivision of Obstetrics and Gynaecology, University of Western Australia, King Edward Memorial Hospital, Perth, WA, Australia.ORCID https://orcid.org/0000-0002-5507-9065
Sarah V WardDivision of Obstetrics and Gynaecology, University of Western Australia, King Edward Memorial Hospital, Perth, WA, Australia.ORCID https://orcid.org/0000-0002-9799-6734

Funding

Channel 7 Telethon TrustCommonwealth Department of Health and Ageing GA217476McCusker Charitable FoundationNational Health and Medical Research Council Partnership Grant APP1151853
6 · The paper itself

Abstract

backgroundEvaluating the success of policies aiming to reduce early term birth (37

objectivesDetermine the best method of reporting temporal changes of early term birth rates.

methodsWe analysed 54,646 singleton births at Western Australia's main tertiary hospital (2009-2019). Using interrupted time series, segmented and nominal regression, we assessed how varying gestational age outcomes, denominator, or statistical method affected conclusions regarding temporal changes (pre and post-Initiative implementation) in the timing of birth.

resultsInterrupted time series showed yearly rates of birth at 37

conclusionExamining early term birth rates in isolation can mask changes in birth timing in the presence of a changing preterm or ≥ 39

Indexed as

Premature BirthTerm BirthFemaleGestational AgeHumansInfant, NewbornInterrupted Time Series AnalysisPregnancyWestern Australiaearly term birthgestational agepolicy evaluationpreterm birthstatistical methodology

Identifiers

PMID42144015
PMCPMC13423260

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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.