STOP-BANG score = number of Yes responses to 8 items (0–8 points).

Letter	Item	Criterion (Yes = 1 point)
S	Snoring	Loud snoring
T	Tiredness	Daytime tiredness, fatigue or sleepiness
O	Observed apnoea	Witnessed apnoea, choking or gasping during sleep
P	Pressure	Diagnosed or treated hypertension
B	Body mass index	BMI over 35 kg/m²
A	Age	Age over 50 years
N	Neck circumference	Neck circumference over 40 cm
G	Gender	Male sex

Risk categories: 0–2 low risk. 3–4 intermediate risk unless expanded high-risk criteria are met. High risk: 5–8, or ≥2 STOP items plus male sex, BMI over 35 kg/m², or neck circumference over 40 cm.

STOP-BANG Score for Obstructive Sleep Apnoea