Childhood Behavior Problems andProdromal Symptoms in Schizotypal Personality Disorder and 22q11.2Deletion Syndrome Public
Shapiro, Daniel Isaac (2009)
Abstract
Abstract Childhood Behavior Problems and Prodromal Symptoms in Schizotypal Personality Disorder and 22q11.2 Deletion Syndrome By Daniel I. Shapiro Adolescents with 22q11.2 Deletion Syndrome (22q11DS) and Schizotypal Personality Disorder (SPD) are at increased genetic and behavioral risk, respectively, for the development of psychosis. No published report has directly compared these groups. Doing so can potentially shed light on the relevance of etiological subtypes in understanding the pathogenesis of schizophrenia/psychoses. SPD, 22q11DS, and control participants were administered the Achenbach Child Behavior Checklist (CBCL) and the Structured Interview for Prodromal Syndromes (SIPS). Analyses were done with the overall sample of participants, as well as on an age- , gender-, and ethnicity-matched subsample. On the CBCL, the two high risk groups demonstrated parallel patterns of score elevations on all scales except the externalizing factor (including delinquency and aggression), where only the SPD group had higher scores than controls. On all other scales, the 22q11DS group demonstrated scores intermediate to those of the SPD and control groups. On the SIPS, both risk groups showed elevated positive, negative, and disorganized prodromal symptoms with respect to the control group, but only significantly differed from each other on positive and negative symptoms. Additionally, approximately 60% of individuals in both groups met symptom criteria for a prodromal syndrome. Results suggest that these two high risk groups are more similar than different, and that the SIPS is a valid measure of prodromal symptoms in 22q11DS.
Table of Contents
Table of contents
INTRODUCTION 1
Schizotypal Personality Disorder as a high-risk Group 5
22q11.2 Deletion Syndrome as a high-risk group 9
Phenotypic Variation in 22q11DS 12
22q11DS and Schizophrenia Symptoms 21
Study Goals and Hypotheses 27
METHOD 31
Participants and Procedure 31
Measures 36
RESULTS 39
SIPS 39
CBCL 45
Prodromal Syndromes 51
DISCUSSION 52
Diagnostic group differences in behavior problems (CBCL) 53
Diagnostic group differences in prodromal symptoms (SIPS) 59
Diagnostic group differences in prodromal syndromes 64
Limitations 66
Summary 67
REFERENCES 69
Table 1 94
Table 2 95
Table 3 96
Table 4 97
Table 5 98
Table 6 99
Table 7 100
Table 8 101
Figure 1 102
Figure 2 103
Figure 3 104
Appendix 1 105
Appendix 2 106
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