Summary of spirometry and impulse oscillation system (IOS) normative data publications
697 individuals, age 6–85 years
USA population, 7429 individuals, age 8–80 years
72 centres, 33 countries, 74 187 individuals, age 3–95 years
Japanese population, 166 individuals, age 20–81 years
Australian population, 132 individuals, age 25–74 years
Norwegian population, 75 individuals, age 70–98 years
German population, 397 individuals, age 45–91 years
Multiple European/Australian cities, 368 individuals, age 18–84 years, variable oscillometry devices used, IOS used in only 62 subjects