From: Designing intelligent anesthesia for a changing patient demographic: a consensus statement to provide guidance for specialist and non-specialist anesthetists written by members of and endorsed by the Society for Obesity and Bariatric Anaesthesia (SOBA)
Classification
BMI (kg/m2)
Normal range
18.5–25
Overweight
≥25
Pre-obese
25–30
Obese
≥30
Obese class I
30–35
Obese class II
35–40
Obese class III (morbidly obese)
≥40