High fasting blood sugar levels tied to increased risk of heart failure: Study

USA: Middle-aged White adults and Black women with prediabetes are at increased risk of heart failure (HF) for lifetime, finds a recent study in the journal Cardiovascular Diabetology. Further, the researchers found the association to be attenuating in older Black women and they found black women with diabetes to have the highest lifetime risk of heart failure (HF). 

Given the increasing prevalence of disparities and dysglycemia in HF burden, Sadiya S. Khan, Northwestern University Feinberg School of Medicine, Chicago, IL, USA, and colleagues aimed to determine race- and sex-specific lifetime risk of HF across the spectrum of fasting blood sugar (FBS).

For the purpose, the researchers pooled individual-level data from adults without baseline HF from 6 population-based cohorts. Modified Kaplan–Meier analysis, Cox models adjusted for the competing risk of death, and Irwin's restricted mean were used to estimate the lifetime risk, adjusted hazard ratio (aHR), and years lived free from HF in middle-aged (40–59 years) and older (60–79 years) adults with FPG < 100 mg/dL, prediabetes (FPG 100–125 mg/dL) and diabetes (FPG ≥ 126 mg/dL or on antihyperglycemic agents) across race-sex groups.