Psychiatric and socioeconomic aspects as possible predictors of compulsive buying behavior / Aspectos psiquiátricos e socioeconômicos como possíveis preditores de comportamento de compras compulsivas

Abstract Introduction: Compulsive buying can be characterized as an almost irresistible urge to buy various items. Compulsive buying disorder is a subject of growing interest to health professionals. It is a current issue and the prevalence rate in the global population is around 5 to 8%. Objectives: The main objective of this study was to identify predictors of compulsive buying in the Brazilian population, assessing possible relationships between compulsive buying, depression and anxiety. Methods: The Richmond Compulsive Buying Scale was administered to screen for compulsive buying and the Hospital Anxiety and Depression Scale was used to assess anxiety and depression in a sample of 359 participants. Pearson coefficients were used to test for correlations. Results: Our study identified an interaction between female gender and compulsion to purchase. Furthermore, people's occupations also appear to have an influence on the problem. We found a correlation between depressive symptoms and oniomania. Conclusion: Our study has certain limitations, such as the difficulty in recruiting individuals with compulsive buying disorder. Since compulsive buying is a phenomenon that is seldom investigated, it therefore remains unidentified. However, this is nevertheless a pioneering paper on the Brazilian population.

Resumo Introdução: A compra compulsiva pode ser caracterizada como um desejo quase irresistível de obter vários itens. O transtorno do comprar compulsivo tem sido objeto de interesse crescente para os profissionais de saúde. Considerado um problema atual, sua taxa de prevalência é de cerca de 5 a 8% na população mundial. Objetivos: O principal objetivo desta pesquisa foi identificar os preditores da compulsão por comprar na população brasileira, avaliando possíveis relações entre compra compulsiva, depressão e ansiedade. Métodos: A Escala de Compras Compulsivas Richmond Adaptada foi utilizada para rastreio do comprar compulsivo, e a Escala Hospitalar de Ansiedade e Depressão, para avaliar ansiedade e depressão, em uma amostra de 359 participantes. As correlações foram determinadas usando o teste de Pearson. Resultados: Foi identificada em nosso estudo uma interação entre sexo feminino e compulsão por compras. Além disso, a ocupação parece interferir no problema. Encontramos uma correlação entre sintomas depressivos e oniomania. Conclusão: Nosso estudo apresenta algumas limitações, tais como a dificuldade em recrutar indivíduos com transtorno do comprar compulsivo. Por ser um tema pouco explorado, há uma dificuldade em identificar indivíduos acometidos. No entanto, este é um ensaio pioneiro na população brasileira.

Cross-cultural adaptation, validation and reliability of the brazilian version of the Richmond Compulsive Buying Scale

OBJECTIVE: To present the process of transcultural adaptation of the Richmond Compulsive Buying Scale to Brazilian Portuguese. METHODS: For the semantic adaptation step, the scale was translated to Portuguese and then back-translated to English by two professional translators and one psychologist, without any communication between them. The scale was then applied to 20 participants from the general population for language adjustments. For the construct validation step, an exploratory factor analysis was performed, using the scree plot test, principal component analysis for factor extraction, and Varimax rotation. For convergent validity, the correlation matrix was analyzed through Pearson's coefficient. RESULTS: The scale showed easy applicability, satisfactory internal consistency (Cronbach's alpha=.87), and a high correlation with other rating scales for compulsive buying disorder, indicating that it is suitable to be used in the assessment and diagnosis of compulsive buying disorder, as it presents psychometric validity. CONCLUSION: The Brazilian Portuguese version of the Richmond Compulsive Buying Scale has good validity and reliability.