ABSTRACT
BACKGROUND: SRQ-20 is a validated screening tool for common psychiatric disorders in several countries. Exploration of the latent structure of this instrument resulted in conflicting evidence. This study aimed to explore the latent structure of SRQ-20 among Brazilian women from community settings. We also tested the model invariance across different sociodemographic conditions. METHODS: Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were conducted on a sample of 1668 women from four different geographical regions of Brazil. Invariance of the model was tested through multi-group CFA according to sociodemographic variables. RESULTS: EFA has shown two potential solutions with two and three factors. CFA resulted in indices of the two-factor solution slightly worse than the three-factor solution. Invariance testing has shown this model was not invariant across cities, but was invariant across different social classes. The structure was also invariant for the two lower educated groups. The respecified model (i.e., excluding item 16) was not invariant across groups with different educational levels. CONCLUSION: The three-factor solution seems to be the most suitable model of SRQ-20 for Brazilian women in community settings. Furthermore, sociodemographic variables seem to reflect on the latent structure of this instrument. Validation of screening tools should consider sociodemographic variables.
Subject(s)
Mental Disorders/diagnosis , Mental Disorders/psychology , Psychometrics , Self-Assessment , Surveys and Questionnaires , Adult , Brazil , Cross-Sectional Studies , Educational Status , Factor Analysis, Statistical , Female , Humans , Middle Aged , Reproducibility of Results , Self Report , Socioeconomic FactorsABSTRACT
CONTEXTO: O objetivo deste estudo foi investigar se antecedente de abuso sexual na infância (ASI) está associado com transtornos alimentares na vida adulta. MÉTODOS: Realizou-se um estudo de caso controle (N = 120) comparando mulheres com transtornos alimentares tratadas em ambulatório universitário especializado com um grupo controle de pacientes de clínica não psiquiátrica (ambulatório de oftalmologia). RESULTADOS: Este estudo encontrou maior prevalência de ASI na anorexia nervosa (AN) comparada ao grupo controle (50% versus 14,8%; OR = 5,8 IC 95% = 1,3-25,6; p < 0,05), entretanto não identificou diferença estatística entre os grupos comparando com casos de bulimia nervosa (BN) (26,7% versus 27% no grupo controle; OR = 0,99; IC 95% = 0,24-4,1) e com transtorno de compulsão alimentar periódica (TCAP), apesar da maior prevalência de ASI observada neste último em relação ao grupo controle (43,7% versus 27,3%; OR = 2,1 IC 95% = 0,5- 8,1). Considerando-se a presença de dois ou mais episódios de ASI, observou-se também maior prevalência em AN (35,7% versus 3,7% nos controles; OR = 14,4 IC 95% = 1,5-140,8; p < 0,05). CONCLUSÃO: Este estudo mostrou forte associação da anorexia nervosa com antecedentes de abuso sexual na infância.
BACKGROUND: The aim of this study is to evaluate if exposure to childhood sexual abuse (CSA) is related with eating disorders in adult life. METHODS: A case-control study was performed comparing women with diagnoses of eating disorders - from PROATA (acronym in Portuguese meaning Eating Disorders Program) of Federal University of São Paulo - and non-psychiatric clinic patients as control group at Ophthalmology Centre. RESULTS: The prevalence of CSA for binge-eating disorder was 43.7%, whilst in the control group it was 27.3% (OR = 2.1; CI 95% = 0.5- 8.1). The prevalence of CSA for bulimia nervosa was 26.7% and, 27% in control group (OR = 0.99; CI 95% = 0.24-4.1). The prevalence of CSA in anorexia nervosa was 50%, whilst in control group it was 14.8% (OR = 5.8; CI 95% = 1.3- 25.6; p < 0.05). Taking into account only the history of two or more CSA episodes, those patients with anorexia nervosa had 35.7% CSA prevalence, and 3.7% in control group (OR = 14.4; CI 95% = 1.5-140.8; p < 0.05). CONCLUSION: This study has shown a strong association between anorexia nervosa and childhood sexual abuse.
