Document ID: chunk:federal_register_of_legislation:F2023L00203:clause:1_105
Version: federal_register_of_legislation:F2023L00203
Segment Type: clause
Provision Reference: sch 1 cl 105
Character Range: 75605–76214

105     Several professional groups have published criteria for rating the severity of impairment based on spirometry, gas transfer and VO2 max. These professional groups include the Thoracic Society of Australia and New Zealand (Abramson, 1996), the American Thoracic Society (American Thoracic Society Ad Hoc Committee on Impairment/Disability Criteria, 1986), and the American Medical Association (2001). In general, measurements are expressed as a percentage of the predicted value (%P) and, where several measurements are performed, the most abnormal result is used to classify the degree of impairment.