Objectives: Patient self-care behaviors, including taking medication, following a meal plan, exercising regularly, and testing blood glucose, influence diabetes control. The purpose of this research was to identify (1) which barriers to diabetes management are associated with problem behaviors and (2) which patient behaviors and barriers are associated with diabetes control.Methods: This was a cross-sectional study of linked medical record and self-reported information from patients with type 2 diabetes. A randomly selected sample of 800 clinic patients was mailed an investigator-developed survey. The study sample consisted of 253 (55%) individuals who had measured glycosylated hemoglobin (HbA1c) within 3 months of the survey date.Results: The barriers to each diabetes self-care behavior differed. Cost was the most common barrier to the 4 self-care behaviors. In a multivariable regression model, the belief that type 2 diabetes is a serious problem and depression were strongly associated with higher HbA1c levels. Lower HbA1c levels were significantly associated with being married and greater self-reported adherence-satisfaction with taking medication and testing blood glucose.Conclusion: This study expanded earlier research by focusing on 4 specific self-care behaviors, their barriers, and their association with HbA1c. Barriers that were significantly associated with HbA1c were specific to the behavior and varied across behaviors. Although the importance of glycemic control is well established, 1 it is often not achieved. 2 Factors contributing to poor control include inadequacies in patient self-care behaviors, medical management, or both. [3][4][5][6][7] Physicians know that patient self-care behaviors influence diabetes control but may lack training for and interest in motivating their patients to improve these behaviors. 8 Contributing to poor control is a paucity of information available about the frequency of problem behaviors, barriers to appropriate care behaviors, or the relationship of specific patient self-care behaviors to glycemic control. 9,10 Our conceptual model for this study is shown in Figure 1, adapted from the works of Glasgow.
11Factors that influence diabetes adherence in our model include personal factors, such as type and duration of diabetes, illness, and other health conditions and psychosocial factors. Glasgow's model places primary emphasis on the variables of the patient-health care provider interactions, compliance, and outcomes. The patient-provider interactions are composed of the patient's perspective and participation, appropriateness of prescriptions, and clarity and specificity of recommendations. The social/environmental influences included barriers to adherence, community resources, social support, and economic factors. The primary emphases of this study were the performance of 4 primary self-care behaviors and specific barriers to these behaviors: (1) medication use, (2) meal plans, (3) exercise, and (4) home glucose testing. In addition, our model attempts to include many ...