Core neuropsychological characteristics of children and adolescents with 22q11.2 deletion.

BACKGROUND: The 22q11.2 deletion syndrome (22qDS) confers high risk for intellectual disability and neuropsychological/academic impairment, although a minority of patients show average intelligence. Intellectual heterogeneity and the high prevalence of psychiatric diagnoses in earlier studies may have obscured the prototypical neuropsychological profile in 22qDS. METHODS: We examined intelligence, memory, reading and mathematical processes in 31 children/adolescents with 22qDS, selected for educational underachievement and an absence of psychiatric diagnoses, using standardised, psychometrically matched instruments that specify how typical a score is for a given intelligence quotient (IQ). RESULTS: Corroborating earlier findings, verbal IQ was significantly superior to performance IQ; verbal memory and basic reading were relative strengths; and visual/spatial memory was a relative weakness. All four findings transcended performance characteristics that are typical of low-IQ individuals. Rote learning yielded the highest score; reading comprehension, numerical operations and mathematical reasoning were among the lowest-performed academic domains. Albeit in the expected direction, performance in the respective components could not be clearly differentiated from what is IQ-appropriate. CONCLUSIONS: A superiority of verbal intelligence over non-verbal intelligence, relative strengths in verbal memory and basic reading, and a relative weakness in visual/spatial memory are likely to be core characteristics of children/adolescents with 22qDS, transcending performance features that are typical of individuals with low IQ.

Comorbid psychopathology and clinical symptomatology in children and adolescents with obsessive-compulsive disorder.

Comorbid psychopathology in children and adolescents with obsessive-compulsive disorder (OCD) has been investigated in a number of studies over the last twenty years. The aim of the present study was to investigate the phenomenology of illness and broader psychopathology in a group of Greek children and adolescents with OCD. The investigation of parental psychopathology in children and adolescents with OCD was a secondary aim of the present study. We studied 31 children and adolescents with OCD (n=31, age range 8-15 years) and their parents (n=62, age range 43-48 years) and compared to children and adolescents with specific reading and written expression learning disorders (n=30, age range 7-16 years) and their parents (n=58, age range 40-46 years). Appropriate testing showed specific reading and learning disorders, which were of mild to moderate severity for the 85% of this latter group. The diagnosis of learning disorder of reading and written expression was made through the use of standardized reading material, appropriate for ages 10-15 years. Reading comprehension and narration were tested. The written expression (spelling, syntax, content) was examined by a written text, in which the subject developed a certain theme from the reading material. Based on their level of education and occupation, the index families were classified as high (29%), average (45%) and low (26%) socioeconomic status, whereas 6.7% of control families belonged to high, 63.3% to average, and 30% to low status. In order to investigate psychopathology, the Schedule for Affective Disorders and Schizophrenia for School Aged Children, Present and Life-time version was administered to children and their parents, as well as the Child Behavior Checklist 4/18 (CBCL) to both parents and adolescents (Youth Self-Report). Also the Yale- Brown Obsessive Compulsive Scale (Y-BOCS) was rated for both children and parents. Moreover, the children were given the Children's Depression Inventory (CDI) and the Revised Children's Manifest Anxiety Scale (RCMAS). In the OCD group, 48% had contamination obsessions, 42% aggressive obsessions and 52% had washing and cleaning compulsions. Moreover, 32% had one additional disorder and 16.1% had two additional disorders. In comparison, only 17.2% of the control group children had one comorbid disorder. The OCD proband group had higher Total Problems score, as well as higher Anxiety/Depression, Thought Problems and Externalizing scores on the CBCL. When proband parents and control parents (29 mothers and 21 fathers) were compared, the percentage of fathers in the clinical range was significantly higher in the study group (Fisher's exact test: p=0.011, two tailed), whereas for mothers the difference did not attain significance (Fisher's exact test: p=0.106, two tailed). The fathers and mothers of children with OCD were more clinically affected than those of controls. Mothers of probands differed from controls in compulsions, compared to fathers, who differed in both obsessions and compulsions. Comorbidity rate was higher to children and adolescents with OCD. A considerable number of children and adolescents with OCD had higher symptomatology of anxiety and depression than controls, as well as higher rates of thought problems. Children and adolescents with OCD also exhibited higher rates of externalizing problems. This latter finding is considered as important and needs to be highlighted in terms of case management and treatment. Moreover, the parents of children and adolescents with OCD had more OCD symptomatology than the parents of children and adolescents with learning disorders. The symptomatology of the parents may create difficulties in interactions within the family and become burdensome for a vulnerable child. In turn, the child's symptomatology may create or increase some of the symptoms in the parents i.e. anxiety and depression. These findings suggest that at least for a percentage of children and adolescents with OCD, parental and especially paternal influence may contribute to the development and severity of their symptoms, not only through hereditary factors but also through the control exerted and the anxiety created in the family context.

Predictors and characteristics of anxiety among adolescent students: a Greek sample.

In the Greek society, there is a strong cultural tendency to overestimate the value of University studies. So students are under high emotional pressure during the long lasting period of the preparation for the university entrance exams. The aim of the present study was to evaluate the level of anxiety in a general adolescent population of senior high school students in Athens, Greece. Also to examine the association between the anxiety's severity with various demographic and socio-cultural factors, as well as with academic performance, extracurricular activities, sleep duration and presence of somatic problems. The sample consisted of 696 adolescent students of three Senior High Schools (SHS) (391 girls and 305 boys). Two of the schools were general education institutions (GE1 and GE2, N=450), while the third was a technical one (TE, N=246). The school sample was selected to reflect the proportion between the two different types of SHSs in Athens as well as other major urban areas in Greece. The State-Trait Anxiety Inventory was administered and personal data were also collected. Statistical significance was set at p<0.05 and analyses were conducted using STATA 7.0. 567 adolescents lived with both parents and 121 with one or none of them. Father's educational level was low for 138, middle for 154, high for 195 and mother's was low for 135, middle for 417, high for 140. The average sleep duration was 7.5 hours per day (SD=1.3). The average time per week spent in school related activities was 7.94 hours (SD=7.56) and in extracurricular activities was 9.02 hours (SD=12.44). 107 adolescents reported somatic complaints in the last year The academic achievement was poor for 233, good for 264, excellent for 196 students. Adolescents with extracurricular activities for more than 11 hours per week had lower scores, both on State and Trait scales. More hours in school-related activities were associated with greater levels of Trait anxiety. Adolescents whose father had a high educational level had lower scores on State anxiety compared to those whose father had a low educational level. Adolescents who reported the presence of somatic problems had a higher score in Trait anxiety. A significant negative correlation was found between sleep duration and both State (r=-0.14, p<0.001) and Trait anxiety (r=-0.10, p=0.008) scores. Stepwise linear regression analyses confirmed the association of gender and of father's educational level with both State and Trait subscale scores. The association of somatic problems with Trait anxiety was greater for girls compared to boys. The hypothesis that there is exam-related anxiety in our sample was not confirmed. There were no differences between school years and GE and TE schools. Also there was not an association of anxiety level with academic achievement and the number of parents the adolescent was living with. This study shows that girls, especially those reporting somatic problems, and adolescents coming from families with low parental education, are particularly prone to higher level of anxiety and that extracurricular activities are linked to lower level of anxiety. These findings could contribute to the planning of preventive measures for student's anxiety.

Psychiatric co-morbidity and gender differences in intellectual disability.

BACKGROUND: Although gender differences in psychopathology among the general psychiatric population appear to be well documented, such differences have been either ignored or inconsistently investigated among people with intellectual disability (ID). METHODS: The study examined psychiatric co- morbidity in 295 men and 295 women with ID and significant social impairments living in community settings. The sample was drawn from consecutive clinical referrals to a specialist mental heath service of South-East London. Psychiatric diagnoses were based on ICD-10 criteria. RESULTS: Personality disorder was more common among men, although dementia and adjustment reaction were more common among women. There were also gender differences in marital status, with a larger percentage of women being either married or in a stable relationship. Gender differences in the source of referral were also observed, with more women being referred through primary care and more men being referred through generic mental health services. CONCLUSIONS: Female patients seem to have at some extent different mental health needs from male patients. Such differences should be taken into account in the design and delivery of clinical service for people with ID.