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- Title
Does the Bayley- III Motor Scale at 2 years predict motor outcome at 4 years in very preterm children?
- Authors
Spittle, Alicia J; Spencer‐Smith, Megan M; Eeles, Abbey L; Lee, Katherine J; Lorefice, Lucy E; Anderson, Peter J; Doyle, Lex W
- Abstract
Aim To assess the predictive validity of the Bayley Scales of Infant and Toddler Development - Third Edition ( Bayley- III) for later motor outcome. Method Ninety-six infants (49 males, 47 females) born at less than 30 weeks' gestation admitted to two tertiary hospitals in Melbourne, Australia, were assessed with the Bayley- III Motor Scale at 2 years' corrected age and were classified as suspect or definite motor impairment if they scored less than −1 or −2 standard deviations respectively, relative to the test mean. At 4 years' corrected age, children completed Movement Assessment Battery for Children - Second Edition ( MABC-2); for the total motor score, cut-offs of not more than the 15th were used to classify motor development and cut-offs of not more than the 15th centile were classified as having a significant movement difficulty. Results Of the 96 children assessed at both ages, at 2 years 9% had suspect and 4% had definite motor impairment; however, by 4 years, rates had increased to 22% and 19% respectively. The specificity of the Bayley- III for motor impairments for later motor outcome was excellent (ranging from 94 to 100% for cerebral palsy [ CP] and 97 to 100% for motor impairment), although the sensitivity was low (ranging from 67 to 83% for CP and 18 to 37% for motor impairment); many children with later impairment were not identified by the Bayley- III. Interpretation The Bayley- III Motor Scale at 2 years underestimates later rates of motor impairment, particularly in the absence of CP at 4 years on the MABC-2 total motor score in children born at less than 30 weeks' gestational age.
- Subjects
HEALTH outcome assessment; PREMATURE infants; MOTOR ability; GESTATIONAL age; STANDARD deviations; MOVEMENT disorders
- Publication
Developmental Medicine & Child Neurology, 2013, Vol 55, Issue 5, p448
- ISSN
0012-1622
- Publication type
Article
- DOI
10.1111/dmcn.12049