4 6 • O U T PA T I E N T S U R G E R Y M A G A Z I N E • O C T O B E R 2 0 1 7
Developed in 2008 by Frances Chung,
MBBS, LMCC, FRCPC, a professor of
anesthesia at the University of Toronto, as
a pre-surgery screening tool, the STOP-
Bang questionnaire is used to help identify
sleep apnea easily with 8 short questions.
STOP-BANG QUESTIONNAIRE
How to Identify Sleep Apnea Risk Factors
Yes to > 3 questions = high risk of obstructive sleep apnea
Yes to < 3 questions = low risk of obstructive sleep apnea
STOP
Snoring?
Do you snore loudly (loud enough to be
heard through closed doors or your
bed-partner elbows you for snoring at
night)?
(Y/N)
Tired?
Do you often feel tired, fatigued or sleepy
during the daytime (such as falling asleep
during driving or talking to someone)?
(Y/N)
Observed? Has anyone observed you stop breath-
ing or choking/gasping during your
sleep?
(Y/N)
Pressure? Do you have or are you being treated for
high blood pressure?
(Y/N)
BANG
Body mass index?
Body mass index more than 35 kg/m
2
? (Y/N)
Age Age older than 50? (Y/N)
Neck size large?
(measured
around Adams
apple)
For male, is your shirt collar
17 inches / 43cm or larger?
For female, is your shirt collar
16 inches / 41cm or larger?
(Y/N)
Gender Male? (Y/N)
