Article

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.
CI - (c) The Authors. Developmental Medicine & Child Neurology (c) 2012 Mac Keith
Press.

Langue : ANGLAIS