STOP-BANG (OSA risk)
OSA risk score (8 yes/no items, 0–8).
What it is for
Pre-operative assessment, screening for OSA referral.
Use the working calculator
The working STOP-BANG (OSA risk) calculator is on our calculators page. It is free and needs no account. Enter the values and it shows the result with the reading that goes with it.
The calculators are free. The trial opens the protocols and pathways they link to.What you enter
The calculator asks for 8 items.
- S — Snore loudly (heard through door) (1 point)
- T — Tired / fatigued / sleepy during day (1 point)
- O — Observed stop breathing during sleep (1 point)
- P — Pressure (high blood pressure, treated or not) (1 point)
- B — BMI > 35 (1 point)
- A — Age > 50 (1 point)
- N — Neck circumference > 40 cm (1 point)
- G — Male sex (1 point)
How the result is read
The result is shown as STOP-BANG, out of a maximum of 8.
The calculator reads each total as follows. Where a single answer changes the reading (for example sex, age or one extreme value), the working calculator says so.
| Total | Band | What the calculator says |
|---|---|---|
| 0 to 2 | Low risk OSA | Reassess if symptoms develop. |
| 3 to 4 | Intermediate | Sleep history; consider sleep clinic. |
| 5 to 8 | High risk OSA | Refer sleep clinic for polysomnography / overnight oximetry. Especially if Epworth ≥ 11 or daytime sleepiness driving. |
Sources
These are the sources the calculator cites. Check the current version before relying on a threshold.
Related
For qualified clinicians. A score supports a clinical decision and does not make it: check the inputs, read the cited source, and use the tools in your clinical system for patient care where one is provided.