Evidence map›Paper›PMID 32343005›Full record

ArticlePaediatric and perinatal epidemiology2020

Preterm birth, unplanned hospital contact, and mortality in infants born to teenage mothers in five countries: An administrative data cohort study.

Katie Harron, Maximiliane Verfuerden, Ibinabo Ibiebele, Can Liu, Alex Kopp, Astrid Guttmann, Jane Ford, Jan van der Meulen, Anders Hjern, Ruth Gilbert

Erratum issuedOpen access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Paediatric and perinatal epidemiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

8 citing papers in PubMed, 21 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 4 countries.

Katie HarronInstitute of Child Health, University College London, London, UK.ORCID 0000-0002-3418-2856
Maximiliane VerfuerdenInstitute of Child Health, University College London, London, UK.
Ibinabo IbiebeleRoyal North Shore Hospital, The University of Sydney Northern Clinical School, Sydney, NSW, Australia.ORCID 0000-0001-6024-2958
Can LiuDepartment of Public Health Sciences, Centre for Health Equity Studies (CHESS), Stockholm University, Stockholm, Sweden.
Alex KoppThe Institute for Clinical Evaluative Sciences, Toronto, ON, Canada.
Astrid GuttmannThe Institute for Clinical Evaluative Sciences, Toronto, ON, Canada.
Jane FordRoyal North Shore Hospital, The University of Sydney Northern Clinical School, Sydney, NSW, Australia.
Jan van der MeulenLondon School of Hygiene and Tropical Medicine, London, UK.
Anders HjernDepartment of Public Health Sciences, Centre for Health Equity Studies (CHESS), Stockholm University, Stockholm, Sweden.
Ruth GilbertInstitute of Child Health, University College London, London, UK.ORCID 0000-0001-9347-2709
University College London · GBInstitute for Clinical Evaluative Sciences · CAStockholm University · SEThe University of Sydney · AULondon School of Hygiene & Tropical Medicine · GB

Funding

CIHRDepartment of Health 03/37/06Department of Health 04/51/01Department of Health 08/13/47Department of Health 12/167/02Medical Research Council MR/K006584/1Medical Research Council MR/S037608/1Wellcome TrustWellcome Trust WT103975
6 · The paper itself

Abstract

backgroundYoung maternal age is associated with lower birthweight and higher rates of preterm birth and childhood hospitalisations. Internationally, teen pregnancy rates vary widely, reflecting differences in social, welfare, and health care factors in different cultural contexts.

objectivesTo determine whether the increased risk of adverse infant outcomes among teenage mothers varies by country, reflecting different national teenage birth rates and country-specific social/welfare policies, in Scotland (higher teenage pregnancy rates), England, New South Wales (NSW; Australia), Ontario (Canada), and Sweden (lower rates).

methodsWe used administrative hospital data capturing 3 002 749 singleton births surviving to postnatal discharge between 2010 and 2014 (2008-2012 for Sweden). We compared preterm birth (24-36 weeks' gestation), mortality within 12 months of postnatal discharge, unplanned hospital admissions, and emergency department visits within 12 months of postnatal discharge, for infants born to mothers aged 15-19, 20-24, 25-29, and 30-34 years.

resultsCompared to births to women aged 30-34 years, risks of adverse outcomes among teenage mothers were higher in all countries, but the magnitude of effects was not related to country-specific rates of teenage births. Teenage mothers had between 1.2% (95% confidence interval [CI] 0.7, 1.7, Sweden) and 2.0% (95% CI 1.4, 2.5, NSW) more preterm births, and between 9.8 (95% CI 7.2, 12.4, England) and 19.7 (95% CI 8.7, 30.6, Scotland) more deaths per 10 000 infants, compared with mothers aged 30-34. Between 6.4% (95% CI 5.5, 7.4, NSW) and 25.4% (95% CI 24.7, 26.1, Ontario), more infants born to teenage mothers had unplanned hospital contacts compared with those born to mothers aged 30-34.

conclusionsRegardless of country, infants born to teenage mothers had universally worse outcomes than those born to older mothers. This excess risk did not vary by national rates of livebirths to teenage mothers. Current mechanisms to support teenage mothers have not eliminated maternal age-related disparities in infant outcomes; further strategies to mitigate excess risk in all countries are needed.

Indexed as

Premature BirthAdolescentChildCohort StudiesFemaleHospitalsHumansInfantInfant, NewbornMothersOntarioPregnancyPregnancy Outcomeadolescencehospitalisationinfantinfant mortalitymaternal agenewbornpreterm delivery

Identifiers

PMID32343005
PMCPMC8425326
OpenAlexW3020575618

What OpenQuestion holds

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LicenceCC BY
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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.