TABLE 1

Summary of spirometry and impulse oscillation system (IOS) normative data publications

First author [ref.]Study summary
Spirometry
 Knudson [7]
  • 697 individuals, age 6–85 years

 Hankinson [8]
  • USA population, 7429 individuals, age 8–80 years

 Quanjer [9]
  • 72 centres, 33 countries, 74 187 individuals, age 3–95 years

IOS
 Shiota [10]
  • Japanese population, 166 individuals, age 20–81 years

 Newbury [11]
  • Australian population, 132 individuals, age 25–74 years

 Aarli [12]
  • Norwegian population, 75 individuals, age 70–98 years

 Schulz [13]
  • German population, 397 individuals, age 45–91 years

 Oostveen [14]
  • Multiple European/Australian cities, 368 individuals, age 18–84 years, variable oscillometry devices used, IOS used in only 62 subjects