Time Perspective, Dietary Behavior, and Glycemic Control in Patients With Type 2 Diabetes.

BACKGROUND: Dietary behavior is a key component in the self-management of patients with type 2 diabetes (T2DM), as it is essential for glycemic control and preventing diabetic complications. However, it is challenging for patients with diabetes to make sustainable dietary behavior changes and achieve long-term optimal glycemic control.

OBJECTIVES: Dietary behavior changes involve present efforts to achieve future benefits. The primary aim of this study was to investigate the relationships among time perspective, dietary behaviors, and health outcomes in patients with T2DM. Based on the temporal self-regulation theory (TST) and previous research, the secondary aim of the study was to explore how time perspective influences dietary behaviors.

METHODS: Following convenient sampling (N = 329), a cross-sectional study was conducted in patients with T2DM between November 2021 and October 2022. Data were collected using self-reported questionnaires and the retrieval of clinical information from medical records. Hierarchical regression and path analysis were used to explore the relationships among study variables.

RESULTS: Our analyses showed that a future-oriented time perspective was associated with better dietary behavior but was not significantly related to hemoglobin A1c. Hierarchical regression analysis also demonstrated that having a more future-oriented time perspective was associated with healthier dietary behavior after controlling covariates. Based on the theory and path analysis, there was an indirect effect of future time perspective on dietary behavior through self-control capacity and intention.

DISCUSSION: The study reveals that a future-orientated time perspective can promote healthier dietary behavior when providing care for patients with T2DM. As a theoretical framework, the TST offers references for researchers and clinicians to take into consideration patients' time perspectives and their intentions and self-control capacity when developing interventional programs to improve dietary behaviors.