Abstract Body (Do not enter title and authors here): Background: Poor self-care in patients with type 1 diabetes (T1DM) and type 2 diabetes (T2DM) leads to increased diabetes complications and health costs. While the goal of self-management for patients with T1DM and T2DM is to maintain normal blood glucose levels, the major methods for achieving this differ (exogenous insulin delivery vs. a combination of self-care techniques, respectively). This implies that factors associated with self-care in the two groups may differ.

Hypothesis: Distinct demographic, cognitive, and psychosocial factors are associated with overall self-care, diet, exercise, blood glucose testing, foot care, and smoking in patients with T1DM and T2DM, in separate models.

Methods: In this cross-sectional, correlational study, data were collected from 148 patients with T1DM (n = 64, mean age: 51.3 years) or T2DM (n = 84, mean age: 62.5) using REDCap during 2023. The participants were recruited from various organizations, institutions, and ResearchMatch in the United States. Several multiple regression analyses were done to test the hypothesis.

Results: Patients with T1DM had better self-care, including overall diabetes self-care, exercise, and blood glucose testing than the T2DM group. Older age (p = .003), lower body mass index (BMI) (p = .040), and stronger knowledge (p = .028) in the T1DM group (F[10,53]= 2.290, p = .026, R² = .302), while lower BMI (p = .045) and higher levels of self-efficacy (p < .001) in the T2DM group were associated with better overall diabetes self-care (F[10,73] = 3.219, p = .002, R² = .306). Older age, lower BMI, stronger knowledge, stronger resilience, and lower self-esteem were associated with better self-care in diet, blood glucose testing, and/or foot care in the T1DM group, while lower BMI, stronger knowledge, higher levels of self-efficacy, and less severe depressive symptoms were associated with better self-care in diet, exercise, and/or blood glucose testing in the T2DM group. None were associated with smoking in both groups. Diabetes distress, self-compassion, and social support were not associated with any types of self-care.

Conclusions: Factors associated with self-care differed based on types of self-care and types of diabetes, thus, supporting the hypothesis. When healthcare providers provide interventions to improve diabetes self-care in individual patients with diabetes, they need to consider types of diabetes, types of self-care, and distinct factors associated with each type of self-care.