Abstract
In Mexico, one of four people with type 2 diabetes mellitus has an acceptable control. Thus, the purpose of this study was to determine the clinical change of a cognitive-behavioral intervention on metabolic control and associated psychological variables (emotional distress, depressive symptomatology and psychological well-being) in people with this disease. A quasi-experimental pretest posttest design with a follow-up of one and three months was used. Results show a very high effect on the emotional distress to the pretest to post-test (g = 1.399) and to the follow-up (g = 1.478); a moderate effect from pretest to posttest (g = 0.461) and high from pretest to posttest (g = 1.036) in psychological well-being. More time is needed for the HbA1c and depressive symptomatology reach ranges of control.
