Body Weight Variability and Cardiovascular Outcomes in Patients With Type 2 Diabetes Mellitus

Area of Science:

• Cardiology
• Endocrinology
• Metabolic Diseases

Background:

• Body weight variability is a recognized risk factor for cardiovascular events.
• This association has not been extensively studied in individuals with diabetes mellitus.

Purpose of the Study:

• To investigate the relationship between body weight variability and cardiovascular events in patients with type 2 diabetes mellitus.

Main Methods:

• Intraindividual body weight variations were measured in 6,408 type 2 diabetes patients across three clinical trials.
• The primary endpoint was any coronary event, a composite of major cardiovascular outcomes.
• Statistical analysis adjusted for traditional cardiovascular risk factors, baseline lipids, mean body weight, and weight change.

Main Results:

• A 1 SD increase in body weight variability was associated with increased risk for coronary events (HR, 1.08), major cardiovascular events (HR, 1.12), and death (HR, 1.16).
• Patients with the highest body weight variation faced significantly higher risks for coronary events (59%), major cardiovascular events (82%), and death (82%) compared to those with the lowest variation.
• These findings remained consistent across sensitivity analyses.

Conclusions:

• Fluctuations in body weight are significantly associated with increased mortality and cardiovascular event rates in type 2 diabetes patients.
• This association is independent of established cardiovascular risk factors.
• Weight variability represents a crucial, often overlooked, risk factor in this population.