Caucasian Asian < 69 years > 70 years < 69 years > 70 years Underweight, BMI <20 <22 <20 <22 Overweight            Grade 1. Overweight, BMI 25–29 27–31 23–27 25–29    Grade 2. Obesity, BMI 30–39 32–41 28–37 30–39    Grade 3. Severe obesity, BMI >40 >42 >38 >40

Table 2: Age-adapted BMI cut-offs used in the study.