[Evaluation of the FD-66 Scale as a tool for predicting treatment adherence in patients with chronic non-communicable diseasesAvaliação da escala EFD-66 como instrumento para predizer a adesão ao tratamento em pacientes com doenças crônicas não transmissíveis].

Objective: The objectives of this study are to validate the construct of the stages of grief scale (FD-66) as an instrument for measuring the stages of grief and to evaluate its usefulness in discriminating among patients with chronic non-communicable diseases in terms of adherence to the pharmacological treatment prescribed.

Methods: A cross-sectional study was conducted from April to October 2015 to determine the association between the stages of grief and treatment adherence. Data were collected using a prolective design.