Hypotheses
We tested four hypotheses, which were based on the SDT model of health behavior. 1) First, we hypothesized that perceived autonomy support from health-care providers would relate positively to patients’ autonomous self-regulation for medication use. 2) Second, we hypothesized that autonomous self-regulation would relate positively to patients’ perceived competence for diabetes self-management. 3) Third, we hypothesized that perceived competence would relate positively to both quality of life and medication adherence. 4) Fourth, we hypothesized that medication adherence would relate positively to improved clinical outcomes (viz., non-HDL cholesterol, HbA1c, and glucose levels).