Evaluación de la calidad de vida de pacientes bipolares chilenos: Propiedades psicométricas y utilidad diagnóstica de la versión chilena del cuestionario Quality of Life Bipolar Disorder (QoL. BD-CL).

Carolina Morgado, Tamara Tapia, Fernando Ivanovic-Zuvic, Andrés Antivilo


Background: The Quality of life Bipolar Disorder (QoL.BD) questionnaire specifically measures quality of life in patients with bipolar disorder. Aim: To adapt a version translated into Spanish of the questionnaire and assess its validity in Chilean patients. Material and Methods: The QoL. BD was adapted to the Chilean population through the back-translation method and then administered to 32 adult patients with a bipolar disorder and and 31 subjects without the disease, both groups with similar socioeconomic status. To confirm the diagnosis, the International Neuropsychiatric Interview (MINI), Young (YMRS) and Hamilton (HAM-D) scales were applied. Quality of life was assessed using the SF-36v.2 survey. We determined internal consistency, reliability, convergent validity, the cut-off point, and the sensibility and specificity of the scale. Results: The Chilean version of the Questionnaire [QoL. BD-CL] had a high reliability (? =0.95) and a high validity in reference to external criteria (correlation coefficients with SF-36 ranging from 0.453 and 0.819; p<0.01). A cut-off point of 170, with sensitivity of 87.9% and specificity of 80% was determined. Conclusions: QoL.BD-CL has adequate psychometric properties, as well as an adequate sensitivity and specificity to distinguish between negative and positive perceptions of life quality in Chilean patients with bipolar disorders.

Palabras clave

Bipolar disorder; Questionnaires

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