Body Mass Index and the Risk of All-Cause Mortality Among Patients with Type 2 Diabetes.

Conclusions—The current study indicated a U-shaped association of BMI with all-cause mortality risk among African American and white patients with type 2 diabetes. A significantly increased risk of all-cause mortality was observed among African Americans with BMI<30 kg/m² and BMI ≥35 kg/m², and among whites with BMI<25 kg/m² and BMI ≥40 kg/m² compared with patients with BMI 30-34.9 kg/m2.