2012
DOI: 10.1016/j.jpeds.2012.01.057
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Are Outcomes of Extremely Preterm Infants Improving? Impact of Bayley Assessment on Outcomes

Abstract: Objectives To compare 18- to 22-month cognitive scores and neurodevelopmental impairment (NDI) in 2 time periods using the National Institute of Child Health and Human Development’s Neonatal Research Network assessment of extremely low birth weight infants with the Bayley Scales of Infant Development, Second Edition (Bayley II) in 2006–2007 (period 1) and using the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley III), with separate cognitive and language scores, in 2008–2011 (period 2). … Show more

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Cited by 221 publications
(183 citation statements)
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“…[16][17][18][19][20][21] Given growing concern regarding constitution of the Bayley-III standardization sample and the underestimation of developmental delay, a cut-off score of 80 is recommended for defining moderate to severe developmental delay when using Bayley-III composite scores. [21] We therefore defined developmental delay for this study as follows: Bayley-III cognitive composite score <80 as cognitive delay; Bayley-III language composite score <80 as language delay; and a cognitive or language composite score <80 as any developmental delay.…”
Section: Methods Participantsmentioning
confidence: 99%
“…[16][17][18][19][20][21] Given growing concern regarding constitution of the Bayley-III standardization sample and the underestimation of developmental delay, a cut-off score of 80 is recommended for defining moderate to severe developmental delay when using Bayley-III composite scores. [21] We therefore defined developmental delay for this study as follows: Bayley-III cognitive composite score <80 as cognitive delay; Bayley-III language composite score <80 as language delay; and a cognitive or language composite score <80 as any developmental delay.…”
Section: Methods Participantsmentioning
confidence: 99%
“…7,13 The BSID-III is a standardized test for children 1 to 42 months that includes scaled and composite scores, percentile ranks, and age equivalents (with confidence intervals [CIs]) for cognitive, language, and motor scores. Composite scores have a mean of 100 and an SD of 15.…”
Section: Methodsmentioning
confidence: 99%
“…1,2 ELBW infants have high rates of adverse cognitive and language outcomes that persist through school age. [3][4][5][6][7] Infants of adolescent mothers also have adverse developmental outcomes on a variety of measures. [8][9][10] There is limited research on the combined risk of extreme prematurity and having an adolescent mother.…”
Section: What This Study Addsmentioning
confidence: 99%
“…CB-III scores ,80 have been recommended for classifying moderate/severe developmental delay 19 to account for the well-documented underestimation of delay produced by using a conventional cutoff of Bayley-III scores ,70. [20][21][22] Three children for whom Bayley-III assessments could not be completed because of severe developmental problems were assigned the lowest Bayley-III scores for each scale (cognitive = 55; language = 47). To enable comparison with previous validation studies, predicted Bayley Scales of Infant Development-II Mental Development Index (predicted-MDI) scores were derived from Bayley-III scores by using a published algorithm.…”
Section: Methodsmentioning
confidence: 99%