Berlin Questionnaire.

BQ

What it measures

Obstructive sleep apnea risk from three symptom categories - snoring/witnessed apnea, daytime sleepiness/fatigue, and hypertension/obesity

Length and format

10 (across 3 categories). Mixed yes/no + frequency items; high-risk if >=2 of 3 categories positive (self-report questionnaire)

Language versions

Many languages incl. ES, PT, FR, DE, ZH, AR, FA, TR; very broadly used

Normative data

Normative data for this instrument is held in our reference library. The per-population breakdown is not published here.

Licence

public-domain / open

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Netzer, N. C., Stoohs, R. A., Netzer, C. M., Clark, K., & Strohl, K. P. (1999). Using the Berlin Questionnaire to identify patients at risk for the sleep apnea syndrome. Annals of Internal Medicine, 131(7), 485-491.