Evidence map›Paper›PMID 31896377›Full record

ArticleDevelopment and psychopathology2021

Preterm birth and risk for language delays before school entry: A sibling-control study.

Imac Maria Zambrana, Margarete E Vollrath, Bo Jacobsson, Verena Sengpiel, Eivind Ystrom

Open access · hybridAbstract read
In one paragraph

Article in Development and psychopathology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
6.2field-weighted citation impact, top 4% 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

19 citing papers in PubMed, 42 citations in OpenAlex.

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  3. Investigating parental perspectives of the enablers and barriers to communication with their preterm infants: A narrative study.Journal of child health care : for professionals working with children in the hospital and community · 2026
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  6. Social determinants of health and language outcomes in preterm infants with public and private insurance.Journal of perinatology : official journal of the California Perinatal Association · 2025
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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

5 authors at 3 institutions in 2 countries.

Imac Maria ZambranaDepartment of Special Needs Education, University of Oslo, Oslo, Norway.
Margarete E VollrathDepartment of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway.ORCID 0000-0001-6514-1144
Bo JacobssonDepartment of Obstetrics and Gynaecology, Sahlgrenska Academy, Gothenburg University, Sweden.
Verena SengpielDepartment of Obstetrics and Gynaecology, Sahlgrenska Academy, Gothenburg University, Sweden.
Eivind YstromSection of Health, Developmental and Personality Psychology, Department of Psychology, University of Oslo, Oslo, Norway.
Norwegian Institute of Public Health · NOSahlgrenska University Hospital · SEUniversity of Oslo · NO

Funding

Gene-Environment Interactions in an Autism Birth CohortU01NS047537 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI LIPKIN, W. IAN · 2003 to 2013
$27.0M
NIEHS NIH HHS N01 ES075558NINDS NIH HHS U01 NS047537
6 · The paper itself

Abstract

We investigated whether children born preterm are at risk for language delay using a sibling-control design in the Norwegian Mother and Child Cohort Study (MoBa), conducted by the Norwegian Institute of Public Health. Participants included 26,769 siblings born between gestational weeks 23 and 42. Language delay was assessed when the children were 1.5, 3, and 5 years old. To adjust for familial risk factors, comparisons were conducted between preterm and full-term siblings. Pregnancy-specific risk factors were controlled for by means of observed variables. Findings showed that preterm children born before week 37 had increased risk for language delays at 1.5 years. At 3 and 5 years, only children born before week 34 had increased risk for language delay. Children born weeks 29-33 and before week 29 had increased risk for language delay at 1.5 years (RR = 4.51, 95% CI [3.45, 5.88]; RR = 10.32, 95% CI [6.7, 15.80]), 3 years (RR = 1.50, 95% CI [1.02, 2.21]; RR = 2.78, 95% CI [1.09, 7.07]), and 5 years (RR = 1.63, 95% CI [1.06, 2.51]; RR = 2.98, 95% CI [0.87, 10.26]), respectively. In conclusion, children born preterm are at risk for language delays, with familial confounders only explaining a moderate share of the association. This suggests a cause-effect relationship between early preterm birth and risk for language delay in preschool children.

Indexed as

Language Development DisordersPremature BirthChild, PreschoolCohort StudiesFemaleGestational AgeHumansInfant, NewbornNorwayPregnancySchoolsSiblingscohort studyearly childhoodlanguage delaypreterm birthsibling control study

Identifiers

PMID31896377
PMCPMC7900651
OpenAlexW2998546951

What OpenQuestion holds

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LicenceCC BY
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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.