TY - JOUR
T1 - Manic Symptoms in Youth
T2 - Dimensions, Latent Classes, and Associations With Parental Psychopathology
AU - Pan, Pedro Mario
AU - Salum, Giovanni Abrahao
AU - Gadelha, Ary
AU - Moriyama, Tais
AU - Cogo-Moreira, Hugo
AU - Graeff-Martins, Ana Soledade
AU - Rosario, Maria Conceicao
AU - Polanczyk, Guilherme Vanoni
AU - Brietzke, Elisa
AU - Rohde, Luis Augusto
AU - Stringaris, Argyris
AU - Goodman, Robert
AU - Leibenluft, Ellen
AU - Bressan, Rodrigo Affonseca
PY - 2014/6
Y1 - 2014/6
N2 - Objective: The purpose of the study was to define the latent structure of parent-reported manic symptoms and their association with functional impairment and familial risk in a community sample of Brazilian children.
Method: We screened for manic symptoms in a community sample of 2,512 children 6 to 12 years of age. Parents of children with "episodes of going abnormally high" completed a detailed mania section (n = 479; 19.1%). Confirmatory factor analysis (CFA) tested a solution with "Under-Control (UC)" and "Exuberant (EX)" dimensions, investigating the severity (threshold) and factor loading of each symptom. We also used latent class analysis (LCA) to evaluate the latent categorical structure of manic symptoms. Associations of these latent constructs with psychiatric comorbidity, psychosocial impairment, and family history of psychopathology were tested.
Results: The 2-dimensional model fit the data well. Only the UC dimension was associated with psychiatric morbidity, psychosocial impairment, and a family history of mania, depression, or suicide attempts. Both UC and EX items discriminated subjects with "episodes of going abnormally high," but EX items lay at the mild end of the severity spectrum, whereas UC items lay at the severe end. The LCA yielded a small group of children with high levels of manic symptoms and a distinct profile of psychiatric comorbidity and impairment ("high-symptom group").
Conclusion: In a large, community-based sample, we found a 2-dimensional latent structure for parent-reported manic symptoms in youth, and demonstrated familial associations between the UC dimension and affective disorders. Both UC and EX items are clinically useful, but their contributions vary with symptom severity.
AB - Objective: The purpose of the study was to define the latent structure of parent-reported manic symptoms and their association with functional impairment and familial risk in a community sample of Brazilian children.
Method: We screened for manic symptoms in a community sample of 2,512 children 6 to 12 years of age. Parents of children with "episodes of going abnormally high" completed a detailed mania section (n = 479; 19.1%). Confirmatory factor analysis (CFA) tested a solution with "Under-Control (UC)" and "Exuberant (EX)" dimensions, investigating the severity (threshold) and factor loading of each symptom. We also used latent class analysis (LCA) to evaluate the latent categorical structure of manic symptoms. Associations of these latent constructs with psychiatric comorbidity, psychosocial impairment, and family history of psychopathology were tested.
Results: The 2-dimensional model fit the data well. Only the UC dimension was associated with psychiatric morbidity, psychosocial impairment, and a family history of mania, depression, or suicide attempts. Both UC and EX items discriminated subjects with "episodes of going abnormally high," but EX items lay at the mild end of the severity spectrum, whereas UC items lay at the severe end. The LCA yielded a small group of children with high levels of manic symptoms and a distinct profile of psychiatric comorbidity and impairment ("high-symptom group").
Conclusion: In a large, community-based sample, we found a 2-dimensional latent structure for parent-reported manic symptoms in youth, and demonstrated familial associations between the UC dimension and affective disorders. Both UC and EX items are clinically useful, but their contributions vary with symptom severity.
KW - mania
KW - bipolar
KW - latent
KW - family history
KW - factor analysis
KW - DIFFICULTIES QUESTIONNAIRE SDQ
KW - BIPOLAR SPECTRUM DISORDERS
KW - PSYCHIATRIC-DISORDERS
KW - COMMUNITY SAMPLE
KW - ADOLESCENTS
KW - CHILDREN
KW - STRENGTHS
KW - VALIDATION
KW - PHENOMENOLOGY
KW - METAANALYSIS
U2 - 10.1016/j.jaac.2014.03.003
DO - 10.1016/j.jaac.2014.03.003
M3 - Article
C2 - 24839881
SN - 0890-8567
VL - 53
SP - 625-634.e2
JO - Journal of the American Academy of Child and Adolescent Psychiatry
JF - Journal of the American Academy of Child and Adolescent Psychiatry
IS - 6
ER -