Related Experiment Video
Updated: Nov 18, 2025

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
[Neurodevelopmental Disorders, Psychiatric Comorbidities and Associated Pathologies in Patients with Childhood-Onset
A Fernandez1,2, M Pasquet-Levy1, G Laure1,2
1Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Hôpitaux Pédiatriques de Nice CHU-LENVAL, 57 avenue de la Californie, Nice, France.
Insights
Childhood-Onset Schizophrenia (COS) frequently presents with psychiatric and developmental issues, alongside somatic conditions like asthma. Early identification and management of these comorbidities are crucial for improving care quality in these young patients.
Area of Science:
- Neuroscience
- Child Psychiatry
- Developmental Psychology
Background:
- Childhood-Onset Schizophrenia (COS) is a rare, severe neurodevelopmental disorder with limited understanding of its associated conditions.
- Comprehensive evaluation of comorbidities in COS is essential for effective patient management.
Purpose of the Study:
- To investigate the psychiatric, neurodevelopmental, and somatic comorbidities in a cohort of children diagnosed with Schizophrenia.
- To provide a detailed overview of the co-occurring conditions in Childhood-Onset Schizophrenia.
Main Methods:
- An ancillary study utilizing standardized psychiatric interviews (K-SADS-PL DSM5) and neuropsychological assessments (WISC-V/WAIS-IV).
- Detailed medical history collection including pregnancy, perinatal, developmental, and personal/family history was performed.
- 20 outpatients diagnosed with Childhood-Onset Schizophrenia were included in the study.
Main Results:
- High rates of psychiatric comorbidities were observed: Attention Deficit Hyperactivity Disorder (75%), Anxiety Disorders (70%), and Autism Spectrum Disorder (65%).
- Neurodevelopmental issues included language delay and school career disruption in 90% of patients, with an average IQ of 70.26.
- Asthma was the most frequent somatic comorbidity, affecting 75% of the patients.
Conclusions:
- Childhood-Onset Schizophrenia is characterized by a high prevalence of psychiatric, neurodevelopmental, and somatic comorbidities.
- Current management of COS is largely symptomatic; addressing all comorbidities is vital for enhancing overall patient care and quality of life.
- Clinical practice should prioritize systematic screening and management of these associated disorders in children with Schizophrenia.
Introduction:
Childhood-Onset Schizophrenia (COS) is a rare (1/40000), severe and neurodevelopmental form of schizophrenia beginning before 13 years of age. Little is known about comorbidities and specific COS-related disorders. Thus, the objective of our study was to evaluate them from a psychiatric, neurodevelopmental and somatic perspective.
Method:
This is an ancillary study of the GenAuDiss protocol. A standardized psychiatric interview (K-SADS-PL DSM5) and a neuropsychological assessment (WISC-V/WAIS-IV) were carried out in outpatients with COS as well as a medical history collection concerning pregnancy, perinatal period, development, biography and medical and psychiatric, personal, and family history.
Results:
20 outpatients were included. The mean age of onset of COS was 8.90 years (+/- 2.30). Psychiatric comorbidities (DSM5) were Attention Deficit Hyperactivity Disorder (15/20 patients), Anxiety Disorders (14/20) and Autism Spectrum Disorder (13/20). The average IQ was 70.26 (+/- 18.09). A language delay and a break in school career were noted in 18/20 patients. Finally, the main associated somatic disorder was asthma (15/20 patients).
Discussion:
We highlighted in our patients with COS a high frequency of comorbidities including at least one systematic psychiatric disorder. However, although COS is a severe condition impacting the patient, his family and society, its management remains essentially symptomatic. In clinical practice, it is necessary to look for all these comorbidities and to manage them in order to improve the overall quality of care.
More Related Videos
Related Concept Videos
Autism Spectrum Disorder
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
Psychological and Sociocultural Causes of Schizophrenia
Biological Causes of Schizophrenia
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
Personality Disorders: Paranoid and Schizoid
Paranoid Personality Disorder
Paranoid personality disorder is...
Schizophrenia

