No-Apnea OSA Screen
No-Apnea OSA screen (Duarte 2018): neck circumference plus age scored 0-9; > 3 indicates high obstructive-sleep-apnea risk.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Neck circumference
- 41 cm
- Age
- 50 years
Result: No-Apnea score 5 of 9 — high OSA risk (>= 3).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- < 3
- Lower OSA risk.
- >= 3
- High risk of obstructive sleep apnea-hypopnea. The derivation states the cutoff plainly: "We used the cutoff >= 3 to classify patients at high risk of having OSA." A screen, not a diagnosis.
- The two items
- Neck circumference (< 37 cm = 0, 37-39.9 = 1, 40-42.9 = 3, >= 43 = 6) and age (< 35 = 0, 35-44 = 1, 45-54 = 2, >= 55 = 3), total 0-9.
- Not the four-item one
- No-Apnea is a TWO-item model. The four-item instrument from the same group is the GOAL questionnaire, a different tool.
What you enter
- Neck circumference
- Age
How this is calculated
Duarte RLM, Magalhaes-da-Silveira FJ, Oliveira-e-Sa TS, Rabahi MF, Mello FCQ, Gozal D. Simplifying the screening of obstructive sleep apnea with a 2-item model, No-Apnea: a cross-sectional study. J Clin Sleep Med. 2018;14(7):1097-1107. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.