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. Author manuscript; available in PMC: 2016 May 24.
Published in final edited form as: J Child Psychol Psychiatry. 2009 Jul 6;50(10):1235–1245. doi: 10.1111/j.1469-7610.2009.02101.x

Table 2.

Stability of the provisional clinical diagnosis of autism, PDD-NOS, and Non-ASD

Provisional
diagnosis
at Time 1
Confirmatory diagnosis at Time 2 N (%*)
Autism PDD-NOS Non-ASD Total
Autism 32 (74%) 11 (26%) 0 (0%) 43
PDD-NOS 3 (16%) 15 (83%) 0 (0%) 18
Non-ASD 1 (4%) 2 (7%) 25 (89%) 28
Total 36 28 25 89
*

Percentage represents an index of stability of the Time 1 provisional diagnosis.