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The ability of Bayley-III scores to predict later intelligence in children born extremely preterm

Månsson, Johanna LU ; Källén, Karin LU ; Eklöf, Eva ; Serenius, Fredrik LU ; Ådén, Ulrika LU and Stjernqvist, Karin LU (2021) In Acta Paediatrica, International Journal of Paediatrics 110(11). p.3030-3039
Abstract

Aim: To investigate the ability of the Bayley Scales of Infant and Toddler Development—Third Edition (Bayley-III), scores to predict later Wechsler Intelligence Scale for Children—Fourth Edition (WISC-IV), performances in a cohort of children born extremely preterm. Methods: 323 children, born <27 gestational weeks, were tested with the Bayley-III at corrected age 2.5 years and with the WISC-IV at 6.5 years. Regression analyses investigated the association between Bayley-III scores and WISC-IV full-scale intelligence quotient (IQ). The ability of Bayley-III Cognitive Index scores to predict low IQ was evaluated using receiver operating characteristic curves. Results: Bayley-III Cognitive Index scores and IQ had a moderately positive... (More)

Aim: To investigate the ability of the Bayley Scales of Infant and Toddler Development—Third Edition (Bayley-III), scores to predict later Wechsler Intelligence Scale for Children—Fourth Edition (WISC-IV), performances in a cohort of children born extremely preterm. Methods: 323 children, born <27 gestational weeks, were tested with the Bayley-III at corrected age 2.5 years and with the WISC-IV at 6.5 years. Regression analyses investigated the association between Bayley-III scores and WISC-IV full-scale intelligence quotient (IQ). The ability of Bayley-III Cognitive Index scores to predict low IQ was evaluated using receiver operating characteristic curves. Results: Bayley-III Cognitive Index scores and IQ had a moderately positive correlation and accounted for 38% of the IQ variance. Using a Bayley-III cut-off score of 70, the sensitivity to detect children with IQ<70 was 18%, and false positive rate was 7%. A Bayley-III cut-off score of 85 corresponded to sensitivity and false positive rates of 44% and 7%, respectively. Conclusions: Results emphasise the relative importance of Bayley-III Cognitive Index scores as predictors of IQ. An 85 score cut-off for suspecting subnormal IQ is supported. A less conservative threshold would increase identification of true cases yet increase the risk of wrongly diagnosing children.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Paediatrica, International Journal of Paediatrics
volume
110
issue
11
pages
10 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:85111822933
  • pmid:34289173
ISSN
0803-5253
DOI
10.1111/apa.16037
language
English
LU publication?
yes
id
3f71cf33-45ee-40e3-a2b4-d671203c6a0d
date added to LUP
2022-03-01 15:00:11
date last changed
2024-06-13 11:10:52
@article{3f71cf33-45ee-40e3-a2b4-d671203c6a0d,
  abstract     = {{<p>Aim: To investigate the ability of the Bayley Scales of Infant and Toddler Development—Third Edition (Bayley-III), scores to predict later Wechsler Intelligence Scale for Children—Fourth Edition (WISC-IV), performances in a cohort of children born extremely preterm. Methods: 323 children, born &lt;27 gestational weeks, were tested with the Bayley-III at corrected age 2.5 years and with the WISC-IV at 6.5 years. Regression analyses investigated the association between Bayley-III scores and WISC-IV full-scale intelligence quotient (IQ). The ability of Bayley-III Cognitive Index scores to predict low IQ was evaluated using receiver operating characteristic curves. Results: Bayley-III Cognitive Index scores and IQ had a moderately positive correlation and accounted for 38% of the IQ variance. Using a Bayley-III cut-off score of 70, the sensitivity to detect children with IQ&lt;70 was 18%, and false positive rate was 7%. A Bayley-III cut-off score of 85 corresponded to sensitivity and false positive rates of 44% and 7%, respectively. Conclusions: Results emphasise the relative importance of Bayley-III Cognitive Index scores as predictors of IQ. An 85 score cut-off for suspecting subnormal IQ is supported. A less conservative threshold would increase identification of true cases yet increase the risk of wrongly diagnosing children.</p>}},
  author       = {{Månsson, Johanna and Källén, Karin and Eklöf, Eva and Serenius, Fredrik and Ådén, Ulrika and Stjernqvist, Karin}},
  issn         = {{0803-5253}},
  language     = {{eng}},
  number       = {{11}},
  pages        = {{3030--3039}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Acta Paediatrica, International Journal of Paediatrics}},
  title        = {{The ability of Bayley-III scores to predict later intelligence in children born extremely preterm}},
  url          = {{http://dx.doi.org/10.1111/apa.16037}},
  doi          = {{10.1111/apa.16037}},
  volume       = {{110}},
  year         = {{2021}},
}