Berlin Questionnaire (OSA)
Berlin Questionnaire for OSA (Netzer 1999): category 1 snoring (positive if >= 2 of 5), category 2 daytime sleepiness (positive if >= 2 of 3), category 3 hypertension or BMI > 30; >= 2 positive categories = high risk.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Cat 1: do you snore?
- Yes
- Cat 1: snoring louder than talking
- Yes
- Cat 1: snoring >= 3-4 times per week
- Yes
- Cat 1: snoring bothered other people
- Yes
- Cat 1: observed breathing pauses >= 3-4 times per week
- Yes
- Cat 2: tired after sleep >= 3-4 times per week
- Yes
- Cat 2: tired during waking hours >= 3-4 times per week
- Yes
- Cat 2: nodded off while driving
- No
- Cat 3: hypertension
- Yes
- Cat 3: BMI > 30 kg/m^2
- Yes
Result: Berlin Questionnaire: 3 of 3 categories positive -> HIGH risk for obstructive sleep apnea per Netzer 1999 (>=2 positive categories).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 0-1 positive categories
- LOW risk for obstructive sleep apnea per Netzer 1999.
- >=2 positive categories
- HIGH risk for obstructive sleep apnea per Netzer 1999.
What you enter
- Cat 1: do you snore?
- Cat 1: snoring louder than talking
- Cat 1: snoring >= 3-4 times per week
- Cat 1: snoring bothered other people
- Cat 1: observed breathing pauses >= 3-4 times per week
- Cat 2: tired after sleep >= 3-4 times per week
- Cat 2: tired during waking hours >= 3-4 times per week
- Cat 2: nodded off while driving
- Cat 3: hypertension
- Cat 3: BMI > 30 kg/m^2
How this is calculated
Netzer NC, Stoohs RA, Netzer CM, Clark K, Strohl KP. Using the Berlin Questionnaire to identify patients at risk for the sleep apnea syndrome. Ann Intern Med. 1999;131(7):485-491. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.