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Psychiatric and Clinical Neurosciences
Volume 57 Issue 1 Page 113 - February 2003
Tokyo
Version for screening pervasive developmental disorders Tokyo
Version (CARS-TV), its total score was compared among 430 children with
DSM-IV per subgroup (i.e. autistic disorder (AD), childhood disintegrative
disorder (CDD), Asperger's disorder, and pervasive developmental disorders (PDD)
not otherwise specified (PDDNOS)). Values of Cronbach's alpha were 0.91 for
the PDD group and 0.89 for the non-PDD mental retardation (MR) group, and
0.93 for both groups combined. The total score was significantly higher in
PDD (mean = 30.1, SD = 4.5) than in non-PDD MR (mean = 22.9, SD = 3.3), t(503) = 13.7,
P< 0.0001. The cut-off to distinguish PDD from non-PDD MR was
25.5/26, with sensitivity, specificity, positive predictive value and
negative predictive value of 0.86, 0.83, 0.97 and 0.50, respectively. The
total score differed significantly among the four groups, with CDD and AD
being significantly higher than both PDDNOS and Asperger's disorder, PDDNOS
being significantly higher than Asperger's disorder and no significant
difference between CDD and AD. The cut-off to distinguish AD from PDDNOS was
30/30.5, with sensitivity, specificity, positive predictive value and
negative predictive value of 0.71, 0.75, 0.77 and 0.69, respectively.
CARS-TV seems to be a useful instrument for differentiating between PDD and
non-PDD MR and between AD and PDDNOS, although further replication is
needed.
