[New spirometric reference equations for healthy Chilean adults].

Background: To correctly interpret spirometric results, reference values should come from the same population. Current spirometric reference equations have been under scrutiny due to deficiencies to fit adequately for Chilean population, specially, for those aged over 65 years old.

Aim: To develop new spirometric reference values for Chilean adults, based on national studies in which spirometries were performed in healthy non-smoker adults.