Evidence map›Paper›PMID 21768322›Full record

Trial reportPediatrics2011

Evidence for catch-up in cognition and receptive vocabulary among adolescents born very preterm.

Thuy Mai Luu, Betty R Vohr, Walter Allan, Karen C Schneider, Laura R Ment

Registry-linked trialAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Pediatrics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00033917 (Randomized Indomethacin Germinal Matrix Hemorrhage/Intraventricular Hemorrhage), which is not on this map. Cited by 52 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 3 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.

NCT00033917 phase3completednot on this map

Randomized Indomethacin Germinal Matrix Hemorrhage/Intraventricular Hemorrhage (GMH/IVH) Prevention Trial

TypeinterventionalSponsorYale UniversityRan1989 to 2012Enrolled630ConditionsIntraventricular Hemorrhage (IVH), Bleeding in the Brain, Prematurity, Very Low Birth Weight InfantsArmsindomethacin, placebo
3 · Its place in the literature

Who cites it

52 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Social-environmental moderators of neurodevelopmental outcomes in youth born preterm: A systematic review.Child neuropsychology : a journal on normal and abnormal development in childhood and adolescence · 2021
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  7. Translating the Power of Precision Medicine Into the World of Communication Disorders.Journal of speech, language, and hearing research : JSLHR · 2025
    Review
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  19. Children Born Prematurely May Demonstrate Catch-Up Growth in Pre-Adolescence.Language, speech, and hearing services in schools · 2021
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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.

Thuy Mai LuuDepartment of Pediatrics, Sainte-Justine University Health Center, Montreal, Quebec, Canada. thuy.mai.luu@umontreal.ca
Betty R Vohr
Walter Allan
Karen C Schneider
Laura R Ment

Funding

RANDOMIZED INDOMETHACIN GMH/IVH PREVENTION TRIALR01NS027116 · NINDS · YALE UNIVERSITY · PI MENT, LAURA R. · 1989 to 2009
$11.9M
NINDS NIH HHS R01 NS027116
6 · The paper itself

Abstract

backgroundVery preterm adolescents display persistent deficits in neuropsychological functions.

objectiveTo compare cognitive and language outcomes at 16 years and cognitive and receptive vocabulary trajectories throughout school years between very preterm and term children and to determine child and family factors associated with better developmental trajectories. DESIGN AND

methodsAt 8, 12, and 16 years, 322 very preterm children with birth weights of 1250 g or less and 41 term children had cognitive and language testing. Hierarchical growth-curve modeling was used to delineate the differences in cognitive and receptive vocabulary development between participants. Cluster analyses allowed for the characterization of very preterm children with different patterns of cognitive and receptive vocabulary development.

resultsAt 16 years, very preterm adolescents had deficits in general cognition and higher-order language skills (phonological awareness and phonemic decoding) compared with term peers. Although the between-group difference in cognitive scores remained stable from 8 to 16 years, very preterm children demonstrated catch-up gains in receptive vocabulary during the same period. Moreover, subgroups of very preterm children displayed developmental trajectories in cognition similar to term children (55% on the vocabulary and 46% on the block-design subtests). These children had lower rates of neurosensory impairment and mothers with higher education and were from an ethnic nonminority.

conclusionsSignificant catch-up in receptive vocabulary is observed by the age of 16 years among very preterm children compared to term peers. The absence of neurosensory impairment and residing in a favorable socioeconomic milieu are associated with the most optimal developmental trajectories.

Indexed as

VocabularyAdolescentChildCognitionCognition DisordersFemaleFollow-Up StudiesHumansInfant, NewbornInfant, PrematureInfant, Very Low Birth WeightLanguage DisordersMaleNeuropsychological TestsTime Factors

Identifiers

PMID21768322
PMCPMC3146356

What OpenQuestion holds

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Registered trials

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.