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. Author manuscript; available in PMC: 2009 Apr 2.
Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2009 Jan;48(1):10–18. doi: 10.1097/CHI.0b013e31818b1c63

Table I.

Table I (a). ASD and Non-ASD developmental disorders in 97 patients with COS in the NIMH cohort*

Developmental Disorder Count

ASD Diagnosis 28

 PDD-NOS 24
 Asperger 1
 Autism 3

No-ASD diagnosis, but with a prior Developmental Disorder 39

 Language Development Problems 29
   Rhythm 0
   Articulation 12
   Comprehension 11
   Production 14
   Mutism 2
  Speech Delay 19
 Motor Developmental Problems 24
   Tics 1
   Repetition 8
   Clumsiness 10
   Motor Delay 15
 Failure to develop age-appropriate social behaviors 13

No ASD or developmental language, motor or social disorder (ASD type) 30

Table I (b). Characteristics of PDD-NOS in patients with COS in the NIMH cohort (n=101)

Impaired Social Interaction

 Impaired ability to initiate or sustain social conversation 58%

 Social withdrawal/poor social skills 58%

 No age-appropriate friendships 42%

 Impaired cooperative play 47%

 Problems with imaginary play 21%

CHILDREN WITH ONE OR MORE SOCIAL IMPAIRMENT 100%

CHILDREN WITH TWO OR MORE SOCIAL IMPAIREMENTS 74%

Verbal/nonverbal Communication

 Incorrect pronoun use 16%

 Language delay 37%

 Lack of facial expressions 53%

 Poor nonverbal communication 16%

 Idiosyncratic language 47%

CHILDREN WITH ONE OR MORE COMMUNICATION IMPAIRMENT 84%

CHILDREN WITH TWO OR MORE COMMUNICATION IMPAIRMENTS 53%

Restricted, Repetitive and Stereotyped Behavior Patterns

 Inflexible adherence to routines and rituals 42%

 Repetitive movement 37%

 Encompassing preoccupation / Restricted interests 47%

CHILDREN WITH ONE OR MORE BEHAVIOR IMPAIRMENT 74%

CHILDREN WITH TWO OR MORE BEHAVIOR IMPAIRMENTS 37%

Echolalia 53%

CHILDREN IMPAIRED IN ALL THREE CATEGORIES 58%

CHILDREN IMPAIRED IN TWO OR MORE CATEGORIES 100%

SOCIAL & COMMUNICATION IMPAIRMENT 84%

COMMUNICATION & BEHAVIOR IMPAIRMENT 58%

SOCIAL & BEHAVIOR IMPAIRMENT 74%

Table I (c). Childhood Onset Schizophrenia 70: PDD vs. Non-PDD

Clinical and Demographic Characteristics

PDD (n=28)
Mean (SD)
Non-PDD (n=73)
Mean (SD)
t
(df=94-68)
p

ASQ Score 18.67 (7.85) 4.12 (4.35) 11.08 <0.001

SES 54.73 (29.51) 63.88 (29.76) 1.34 0.18

Age of Psychosis Onset 9.76 (2.18) 10.35 (1.94) 1.27 0.21

IQ 79.33 (15.50) 74.10 (18.84) 1.06 0.29

GAS 32.84 (12.18) 33.29 (10.84) 0.17 0.86

Sex - % male 71% 52% X2(df=1) = 3.11 0.08

Race - % AfrAmer:Oth:Cauc 14%:21%:64% 33%:26%:41% X2(df=2) = 4.99 0.083
*

97 out of 101 with complete data

ASD-Autism Spectrum Disorder, PDD-NOS- Pervasive Developmental Disorder Not Otherwise Specified.

SD- Standard Deviation, dF- Degrees of Freedom, X2 – chi squared, ASQ-Autism Screening Questionnaire, SES- Socio-Economic Status, GAS – Global Assessment of Severity, AfrAmer-African American, Oth- Other, Cauc-Caucasian