Table 2.

Autism Diagnostic Interview-Revised (ADI-R) of the patient at the age of 41.8 months

Domain	Score
Qualitative Abnormalities in Reciprocal Social Interaction (RSD)
Failure to use nonverbal communication to regulate social interaction (A1)	6
Failure to develop peer relationships (A2)	4
Lack of shared enjoyment (A3)	6
Lack of socioemotional reciprocity (A4)	8
Subtotal (Cut-off)	24 (10)
Qualitative Impairments in Communication and Language (COM)
Lack of, or delay in, spoken language and failure to compensate through gesture (B1)	8
Lack of varied spontaneous make-believe or social imitative play (B4)	6
Subtotal (Cut-off)	14 (7)
Restricted, Repetitive, and Stereotyped Behaviors and interests (RRB)
Encompassing preoccupations or circumscribed pattern of interest (C1)	0
Apparently Compulsive Adherence to Nonfunctional Routines or Rituals (C2)	0
Stereotyped and repetitive motor mannerisms (C3)	2
Preoccupation with part of objects or nonfunctional elements of material (C4)	2
Subtotal (Cut-off)	4 (3)
Abnormality of development evident at or before 36 months (Cutoff)	5 (1)
Total (Cut-off)	47 (21)

COM qualitative abnormalities in communication, RRB restricted and repetitive Behavior; RSI qualitative abnormalities in reciprocal social interaction