Adaptation and preliminary validation of the Montgomery-Åsberg Depression Rating Scale (MADRS) using the Structured Interview Guide (SIGMA) for European Portuguese
Raquel Guiomar,
Sara Samarra,
Mariana Rodrigues,
Andreia Martins,
Vera Martins,
Mariana Jesus,
Filipe Fernandes,
Inês Alves,
Tânia Silva,
Ana Ganho-Ávila
Affiliations
Raquel Guiomar
Universidade de Coimbra, Centro de Investigação em Neuropsicologia e Intervenção Cognitiva e Comportamental, Faculdade de Psicologia e de Ciências da Educação, Coimbra, Portugal.
Sara Samarra
Universidade de Coimbra, Faculdade de Psicologia e de Ciências da Educação, Coimbra, Portugal.
Mariana Rodrigues
Universidade de Coimbra, Faculdade de Psicologia e de Ciências da Educação, Coimbra, Portugal.
Andreia Martins
Universidade de Coimbra, Faculdade de Psicologia e de Ciências da Educação, Coimbra, Portugal.
Vera Martins
Departamento de Psiquiatria, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Mariana Jesus
Departamento de Psiquiatria, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal. Faculdade de Medicina da Universidade de Coimbra, Coimbra, Portugal.
Filipe Fernandes
Instituto Superior Manuel Teixeira Gomes, Portimão, Portugal. Grupo HPA Saúde, Portimão, Portugal.
Inês Alves
Universidade do Algarve, Faculdade de Ciências Humanas e Sociais, Faro, Portugal.
Tânia Silva
Departamento de Psiquiatria, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Ana Ganho-Ávila
Universidade de Coimbra, Centro de Investigação em Neuropsicologia e Intervenção Cognitiva e Comportamental, Faculdade de Psicologia e Ciências da Educação, Coimbra, Portugal.
The Montgomery-Åsberg Depression Rating Scale (MADRS) is considered one of the gold-standard measures to assess depression severity. To standardise the MADRS administration, a structured interview was developed (SIGMA). This study aims to translate and validate the SIGMA for European Portuguese. Twenty patients (80% women) were interviewed by ten dyads of raters (trained clinical psychologists and psychiatrists) using the European Portuguese version of the MADRS and its structured interview SIGMA. There was no significant difference in the total MADRS score between raters (interviewers and observers). The intraclass correlation for the total score between raters using the SIGMA was excellent (r = .98; p < .001). All items had excellent to good item-level intraclass correlation, and the internal consistency by rater role was good. The European Portuguese version of the SIGMA showed good preliminary psychometric properties (reliability and internal consistency). Our results suggest that the SIGMA is a useful and robust interview guide for assessing the ten depression symptoms in the MADRS, regardless of the rater clinical background.
