The purpose of this study was to evaluate a 4-month telephone-based goal-setting and decision support intervention among adults with type 2 diabetes mellitus (T2DM) and multiple risk factors for cardiovascular disease (CVD).
Methods
A randomized pretest-posttest control group design was employed. Overweight or obese adults aged 40 to 75 years with T2DM and ≥1 additional CVD risk factor were provided with individualized CVD risk information. At baseline and each biweekly telephone call, the multiple-goal group self-selected both diet- and physical activity–related goals, the single goal group set a single goal, and the control group received information about community health resources. Dietary intake was assessed via a food frequency questionnaire, physical activity via questionnaire, and A1C and blood lipids via fasting fingerstick sample. Between-group differences for clinical (ie, A1C, blood pressure, and blood lipids), physical activity, and dietary variables were evaluated using Kruskal-Wallis, Mann-Whitney U, analysis of variance, and t tests.
Results
From pre- to postintervention, the single-goal group demonstrated significant improvement in systolic blood pressure and intake of servings of fruits, vegetables, and refined grains (all P < .05). The multiple-goal group reported significant reduction in percent energy from total, saturated, monounsaturated, and trans fat intake and significant increase in leisure time walking (all P < .05).
Conclusion
A multiple-goal approach over 4 months can improve dietary and physical activity outcomes, while a single-goal approach may facilitate improvement in one behavioral domain. Additional research is needed to evaluate maintenance of the achieved changes.
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