BMI and mortality among older adults in Belgium: the roles of age, sex, and frailty
Ageing populations and increasing prevalence of overweight are two of the main healthcare challenges worldwide. In 2023–2024, 49.7% of the Belgian population had overweight (BMI $$\ge$$ 25) and 3.1% of the population aged 65 years and above had underweight (BMI < 18.5). The health risks associated with hi...