Adaptación y validación del instrumento EMPODERA-TB para evaluar el empoderamiento en pacientes con tuberculosis pulmonar

OBJECTIVE. Adapt and validate EMPODERA-TB in order to measure empowerment of patients with pulmonary tuberculosis (TB). METHODS. An instrument initially designed to measure empowerment of patients with chronic diseases was adapted and validated to measure empowerment of patients with tuberculosis. The items applicable to patients with tuberculosis were selected and adapted. Validation was performed using exploratory and confirmatory factor analysis, and internal consistency was determined using Cronbach's alpha coefficient, based on data from a sample of 49 patients of Mexican origin diagnosed with pulmonary tuberculosis. RESULTS. The instrument comprised 19 items grouped into three dimensions: knowledge acquisition, information-sharing skills, and decision-making skills. Acceptable goodness-of-fit was observed (SRMR: 0.124; CD: 0.999); internal consistency for the three dimensions was 0.878, 0.879, and 0.808, respectively, and for the instrument overall it was 0.885. CONCLUSIONS. The instrument showed acceptable goodness-of-fit and adequate internal consistency, making it possible to measure empowerment of patients with pulmonary tuberculosis. This instrument will be useful in TB clinical practice and epidemiology in Spanish-speaking Latin American countries. It will allow implementation of strategies that improve knowledge and adherence to treatment, interactions with patients or individuals at risk of infection, and development of prevention strategies.