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STOP BANG Sleep Apnoea Calculator

Work out stop bang sleep apnoea instantly with clear inputs, formula shown and shareable results.

About STOP BANG Sleep Apnoea Calculator

Counts the eight STOP-BANG yes or no items and applies the published risk bands used for pre-operative obstructive sleep apnoea screening.

Formula

STOP-BANG

One point each for snoring, tiredness, observed apnoea, hypertension, BMI >35, age >50, neck >40 cm and male sex; 0-2 low, 3-4 intermediate, 5-8 high risk

Worked example

With the default values below, STOP BANG Sleep Apnoea Calculator returns STOP-BANG total of 4. Change any input above and every figure here is recalculated in your browser.

Inputs used

STOP items presentaccepts 0–4
2
BANG items presentaccepts 0–4
2

Results

STOP-BANG total
4
Risk band
Intermediate risk
Additional rule
Two or more STOP items with at least one BANG item also indicates higher risk
Maximum possible score
8

Step by step

  1. 1Values used
  2. 2STOP-BANG
  3. 3STOP-BANG total= 4
  4. 4Risk band= Intermediate risk
  5. 5Additional rule= Two or more STOP items with at least one BANG item also indicates higher risk
  6. 6Maximum possible score= 8

Assumptions and limits

  • The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Why is it used before surgery?

Unrecognised sleep apnoea raises peri-operative airway and cardiorespiratory risk, so screening changes anaesthetic planning.

Does a high score need a sleep study?

It prompts one where symptoms warrant, but the score itself is a screen rather than a diagnosis.

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STOP BANG Sleep Apnoea Calculator | Calcrivo