Airway Questionnaire 20

**Semantic type:** Intellectual Product

**Definition:** A standardized rating scale developed by Barley et al in 1988 to measure health status and detect changes in quality of life in asthmatic patients. The questionnaire contains 20 questions and each can be answered with Yes, No, or N/A (Not Applicable).

**Synonyms:** - AQ01 - AQ20 - AQ20