Accuracy of the Bayley-II mental development index at 2 years as a predictor of cognitive impairment at school age among children born extremely preterm
Author Department
Pediatrics
Document Type
Article, Peer-reviewed
Publication Date
7-2018
Abstract
OBJECTIVE:
To describe the accuracy of the Bayley Scales of Infant Development-Second Edition (BSID-II) Mental Development Index (MDI) at 2 years of age for prediction of cognitive function at school age of children born extremely preterm.
DESIGN:
Study participants were enrolled in the Extremely Low Gestational Age Newborn Study between 2002 and 2004. Two-thirds of surviving children (n = 795) were assessed at 2 years with the BSID-II and at 10 years with an intelligence quotient (IQ) test. We computed test characteristics for a low MDI (
RESULTS:
Almost two-thirds of children with a low MDI had a normal IQ (≥ 70) at 10 years. Concordance between MDI and IQ was highest among children with major motor and/or sensory impairment, and when MDI was adjusted for gestational age.
CONCLUSION:
Most children born extremely preterm with low BSID-II MDI at 2 years have normal intelligence at school age.
Recommended Citation
O'Shea TM, Joseph RM, Allred EN, Taylor HG, Leviton A, Heeren T, Douglass LM, Frazier JA, Jara H, Kuban KCK; ELGAN Study Investigators [Collaborators: Shah B, Singh R ]. Accuracy of the Bayley-II mental development index at 2 years as a predictor of cognitive impairment at school age among children born extremely preterm. J Perinatol. 2018 Jul;38(7):908-916.
PMID
29808002