Anesthesia Considerations 

STOP-BANG Screening for OSA 

 

 

Screening Questions 

 

• Snoring: loud snoring 

• Tiredness: being tired, fatigued, or sleepy during daytime 

• Observed Apneas: others have observed patient stop breathing during sleep  

• Pressure: diagnosed with hypertension    

• BMI: >35 

• Age: >50 

• Neck circumference: >40cm  

• Gender: Male

 

 

How to Use

• Scoring: 

  • ≥3: high risk of having OSA 

  • <3: low risk of having OSA  

• Sensitivity for various AHI levels: 

  • AHI >15: 93% 

  • AHI >30: 100% 

• Specificity 

  • AHA >15: 43% 

  • AHA >30: 37% 

 

Adapted from:

• American Society of Anesthesia Guidelines 2014:  Anesthesiology. 2014 Feb;120(2):268-86.

• The Canadian Anesthesia Society Guidelines 2010:  Can J Anaesth. 2010 Sep;57(9):849-64