Associations of self-management behaviors, depressive symptoms, and glycemic control on cognitive function in rural elderly with type 2 diabetes - Report - MDSpire
Advertisement
Associations of self-management behaviors, depressive symptoms, and glycemic control on cognitive function in rural elderly with type 2 diabetes
Impact of Self-Management, Depression, and Glycemic Control on Cognitive Function in Rural Elderly with T2DM
Overview
This longitudinal cohort study of 232 rural Chinese older adults with type 2 diabetes mellitus (T2DM) found that improved diabetes self-management behaviors and reduced depressive symptoms were associated with lower risk of mild cognitive impairment (MCI). Better glycemic control partially mediated the beneficial effect of self-management on cognitive function.
Background
Type 2 diabetes mellitus (T2DM) is prevalent among the elderly and is linked to increased risk of mild cognitive impairment (MCI), a precursor to dementia. Rural older adults with T2DM face unique challenges including limited healthcare access and socioeconomic factors. While hyperglycemia is implicated in cognitive decline, the role of modifiable factors such as self-management behaviors and depressive symptoms remains unclear. Understanding these relationships is critical for developing interventions to prevent cognitive deterioration in this vulnerable population.
Data Highlights
Variable
Effect on Outcome
Beta (β)
P-value
Improved self-management (Δ SDSCA)
Better glycemic control
0.233
<0.01
Improved self-management (Δ SDSCA)
Lower risk of MCI
0.220
<0.001
Reduced depressive symptoms (Δ CESD-10)
Lower risk of MCI
-0.145
<0.05
Better glycemic control
Lower risk of MCI
0.143
<0.05
Mediation effect of glycemic control
On self-management and MCI
Indirect effect = 0.035 (95% CI [0.006, 0.074])
Significant
Key Findings
37.07% of participants developed mild cognitive impairment (MCI) during follow-up.
Improved diabetes self-management behaviors significantly predicted better glycemic control (β = 0.233, P < 0.01).
Increased self-management and reduced depressive symptoms were independently associated with lower risk of MCI.
Better glycemic control was also associated with reduced MCI risk.
Glycemic control partially mediated the positive effect of improved self-management on cognitive function.
Clinical Implications
Enhancing self-management behaviors in older adults with T2DM may improve cognitive outcomes by facilitating better glycemic control. Screening and treating depressive symptoms should be integrated into diabetes care to further reduce the risk of cognitive decline. These findings support multifaceted interventions targeting behavioral and psychological factors to prevent MCI in rural elderly populations with diabetes.
Conclusion
Improving self-management and alleviating depressive symptoms are important strategies to reduce the incidence of mild cognitive impairment among rural older adults with type 2 diabetes. Glycemic control partially mediates these effects, highlighting its role as a key therapeutic target.
References
Impact of Self-Management Practices, Depression, and Glycemic Regulation on Cognitive Function in Rural Older Adults with Type 2 Diabetes, 2024
