Using Genetics to Examine a General Liability to Childhood Psychopathology.
Behav Genet
; 50(4): 213-220, 2020 07.
Article
in En
| MEDLINE
| ID: mdl-31828458
ABSTRACT
Psychiatric disorders show phenotypic as well as genetic overlaps. There are however also marked developmental changes throughout childhood. We investigated the extent to which, for a full range of early childhood psychopathology, a general "p" factor was explained by genetic liability, as indexed by multiple different psychiatric polygenic risk scores (PRS) and whether these relationships altered with age. The sample was a UK, prospective, population-based cohort with psychopathology data at age 7 (N = 8161) and age 13 (N = 7017). PRS were generated from large published genome-wide association studies. At both ages, we found evidence for a childhood "p" factor as well as for specific factors. Schizophrenia and attention-deficit/hyperactivity disorder (ADHD) PRS were associated with this general "p" factor at both ages but depression and autism spectrum disorder (ASD) PRS were not. We also found some evidence of associations between schizophrenia, ADHD and depression PRS with specific factors, but these were less robust and there was evidence for developmental changes.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Psychopathology
/
Mental Disorders
Type of study:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Country/Region as subject:
Europa
Language:
En
Journal:
Behav Genet
Year:
2020
Document type:
Article