title: Latent structure of the symptomatology of hospitalized patients with bipolar mania.
abstract: Several studies have attempted to understand the dimensions of psychiatric symptoms in manic episodes, but only a few have been able to model the latent structure of mania in bipolar disorder patients using confirmatory factor analysis. The objective of the present study was to search for the best model of the symptomatology of hospitalized manic patients. To achieve this goal, 117 manic inpatients during a manic crisis participated in this research. Exploratory factor analysis was conducted followed by confirmatory factor analysis using an exploratory factor analysis solution and three other theory-based models. The exploratory factor analysis results revealed a six-factor structure: depression, suicide, insomnia, mania, psychosis, and anxiety. This solution also presented the best fit to the data when tested with confirmatory factor analysis. A five-factor solution, without suicide as a separate dimension, appeared to be more theoretically suitable. Another important finding was that anxiety was an independent dimension in mania. Some hypotheses are discussed in light of contemporary theories, and future studies should investigate this aspect further.
authors.affiliation: University of Western Ontario (UWO), Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Brazil. Electronic address: albertofilgueiras@gmail.com.
authors.forename: A
authors.initials: A
authors.lastname: Filgueiras
authors.affiliation: Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro (IPUB-UFRJ), Brazil.
authors.forename: A L S
authors.initials: AL
authors.lastname: Nunes
authors.affiliation: Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro (IPUB-UFRJ), Brazil.
authors.forename: L A S
authors.initials: LA
authors.lastname: Silveira
authors.affiliation: Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro (IPUB-UFRJ); Instituto Philippe Pinel, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: de Assis da Silva
authors.affiliation: Instituto de Psiquiatria do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (USP), Brazil.
authors.forename: R O
authors.initials: RO
authors.lastname: da Silva
authors.affiliation: Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Universidade Estácio de Sá, Brazil.
authors.forename: J
authors.initials: J
authors.lastname: Landeira-Fernandez
authors.affiliation: Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro (IPUB-UFRJ), Universidade do Estado do Rio de Janeiro (UERJ), Brazil.
authors.forename: E
authors.initials: E
authors.lastname: Cheniaux
mesh_terms: D000328:Adult; D001007:Anxiety / Q000523:psychology*; D001714:Bipolar Disorder / Q000523:psychology*; D003863:Depression / Q000523:psychology*; D005163:Factor Analysis, Statistical; D005260:Female; D006760:Hospitalization; D006801:Humans; D007297:Inpatients / Q000523:psychology; D008297:Male; D008960:Models, Psychological; D011618:Psychotic Disorders / Q000523:psychology*; D007319:Sleep Initiation and Maintenance Disorders / Q000523:psychology*; D013405:Suicide / Q000523:psychology*; D055815:Young Adult
keywords: Bipolar disorder; Confirmatory factor analysis; Latent structure; Mania