STOP-BANG Questionnaire for Obstructive Sleep Apnea

Screens for obstructive sleep apnea (OSA) risk using the 8-item STOP-BANG questionnaire: Snoring, Tired, Observed apneas, Pressure (hypertension), BMI >35, Age >50, Neck >40 cm, Gender (male). Score 0–2: low risk; 3–4: intermediate risk; ≥5: high risk for moderate-to-severe OSA.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Screens for obstructive sleep apnea (OSA) risk using the 8-item STOP-BANG questionnaire: Snoring, Tired, Observed apneas, Pressure (hypertension), BMI >35, Age >50, Neck >40 cm, Gender (male). Score 0–2: low risk; 3–4: intermediate risk; ≥5: high risk for moderate-to-severe OSA

Each component has a specific meaning:

  • 8-item STOP-BANG questionnaire: Snoring — The 8-item stop-bang questionnaire: snoring recorded for the scenario being assessed.
  • Tired — The tired recorded for the scenario being assessed.
  • Observed apneas — The observed apneas recorded for the scenario being assessed.
  • Pressure — The pressure recorded for the scenario being assessed.
  • BMI >35 — The bmi >35 recorded for the scenario being assessed.
  • Age >50 — The age >50 recorded for the scenario being assessed.

Note: Interpret the stop-bang osa result against the thresholds and context described above.

How to Use

Enter the 8-item STOP-BANG questionnaire: Snoring, Tired, Observed apneas, Pressure, BMI >35, Age >50 for the scenario you are assessing. Screens for obstructive sleep apnea (OSA) risk using the 8-item STOP-BANG questionnaire: Snoring, Tired, Observed apneas, Pressure (hypertension), BMI >35, Age >50, Neck >40 cm, Gender (male). Score 0–2: low risk; 3–4: intermediate risk; ≥5: high risk for moderate-to-severe OSA. Use the stop-bang osa result to inform your calculation.

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Frequently Asked Questions