. Author manuscript; available in PMC: 2016 Sep 1.

Published in final edited form as: J Child Psychol Psychiatry. 2015 Apr 29;56(9):988–998. doi: 10.1111/jcpp.12421

Table 3.

Patterns of Clinical Best Estimate outcome classifications across visits

Clinical Best Estimate Outcome			Total (n = 418)	ASD at 36 months (n = 110)	Not ASD at 36 months (n = 308)	Classification
18 months	24 months	36 months	Total (n = 418)	ASD at 36 months (n = 110)	Not ASD at 36 months (n = 308)	Classification
A	A	A	38	35%	-	True Positives

A	A	N	2	-	0.7%	False Positives
A	N	N	1	-	0.3%	False Positives
N	A	N	12	-	4%	False Positives

A	N	A	3	3%	-	False Negatives
N	A	A	27	25%	-	False Negatives
N	N	A	42	38%	-	False Negatives

N	N	N	293	-	95%	True Negatives

Note: ASD = autism spectrum disorder, A = ASD, N = Not ASD.