Evidence map›Paper›PMID 39869623›Full record

ArticlePloS one2025

Comparative analysis of developmental outcomes in very preterm infants: BSID-II versus Bayley-III German norms.

Marlene Hammerl, Martina Zimmermann, Anna Posod, Ulrike Pupp Peglow, Michaela Höck, Elke Griesmaier, Ursula Kiechl-Kohlendorfer, Vera Neubauer

Abstract readComparative Study
In one paragraph

Article in PloS one, 2025. 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. Observational
  2. 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.

Marlene HammerlDepartment of Pediatrics II (Neonatology), Medical University of Innsbruck, Innsbruck, Austria.ORCID 0000-0002-7588-0431
Martina ZimmermannDepartment of Pediatrics II (Neonatology), Medical University of Innsbruck, Innsbruck, Austria.
Anna PosodDepartment of Pediatrics II (Neonatology), Medical University of Innsbruck, Innsbruck, Austria.ORCID 0000-0003-1008-3375
Ulrike Pupp PeglowDepartment of Pediatrics II (Neonatology), Medical University of Innsbruck, Innsbruck, Austria.
Michaela HöckDepartment of Pediatrics II (Neonatology), Medical University of Innsbruck, Innsbruck, Austria.
Elke GriesmaierDepartment of Pediatrics II (Neonatology), Medical University of Innsbruck, Innsbruck, Austria.
Ursula Kiechl-KohlendorferDepartment of Pediatrics II (Neonatology), Medical University of Innsbruck, Innsbruck, Austria.ORCID 0000-0003-0433-6196
Vera NeubauerDepartment of Pediatrics II (Neonatology), Medical University of Innsbruck, Innsbruck, Austria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAfter the release of the Bayley Scales of Infant and Toddler Development, third edition (Bayley-III), US norms, an overestimation of outcome was observed. But, the conformity between the Bayley Scales of Infant Development, second edition (BSID-II), and the Bayley-III German norms is unknown. This retrospective analysis aimed to compare outcomes of very preterm infants tested with BSID-II and Bayley-III German norms.

methodsInfants born from November 2007 to July 2018 were included. Exclusion criteria were death or missing outcome. Infants underwent testing with either BSID-II until December 2013 or Bayley-III from January 2014 onward, at 12 and/or 24 months. BSID-II Mental Developmental Index (MDI) was compared to Bayley-III cognitive score and a combined Bayley-Score (CB-III) consisting of the cognitive and language composite score. BSID-II Psychomotor Developmental Index (PDI) was compared to Bayley-III motor composite score. Abnormal outcomes were defined as scores <85 (delay) or <70 (impairment).

results649 infants were included. At 12 months, the Bayley-III cohort achieved higher scores in all domains compared to the BSID-II cohort (all p<0.05), with lower rates of motor delay in the Bayley-III cohort (p<0.001). At 24 months, only Bayley-III motor composite scores were higher than the BSID-II PDI (p<0.001). Rates of cognitive impairment were higher in the Bayley-III cohort (p = 0.013).

interpretationOur findings indicate that the Bayley-III German norms effectively identify children needing interventions, particularly at 24 months corrected age. This supports both clinical application and scientific comparability with the BSID-II.

Indexed as

Child DevelopmentDevelopmental DisabilitiesInfant, Extremely PrematureInfant, PrematureChild, PreschoolCognitionFemaleGermanyHumansInfantInfant, NewbornMaleRetrospective Studies

Identifiers

PMID39869623
PMCPMC11771884

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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.