NPPB and obesity due to melanocortin 4 receptor deficiency: Among all AML patients examined, five (1.6%) were regarded underweight (BMI < 18.5 kg/m2), 108 (34.6%) normal weight (BMI 18.5–24.9 kg/m2), 112 (35.9%) overweight (BMI 25.0–29.9 kg/m2), and 57 (18.3%) had obesity (BMI >30 kg/m2) at diagnosis without any significant difference when comparing NT‐proBNP levels in these subgroups (p = .767).34