B-14 CASE Revision C
2060290-201
Miscellaneous: Spirometry Reference Value Equations, Interpretation Modes, Measurements
Knudson
This reference value equation was published 1983 (KNUDSON et al. Am
Rev Respir Dis 127 (1983) 725-734).
The reference values are height and gender-related and are defined for
patients aged 5 to 90 years from the ethnic groups Caucasian (Race
selection: Caucasian), African American (Race selection: Black).
Note
Age range from 5 to 90 years.
For patients exceeding the range limits, the limit values will be
used.
A range for height is not defined.
The equation defines the following reference values: VC (same as FIVC),
MEF75, MEF50, MEF25, PEF, MMEF, FVC, FEV1, FEV1/FVC.
Forche
This reference value equation was published 1994 (Sollwerte für die
Lungenfunktion; Arbeitskreis für die Standardisierung der
Österreichischen Gesellschaft für Lungenerkrankungen und
Tuberkulose 1994).
The reference values are height and gender-related and are defined for
patients aged 5 to 90 years, for adolescents the values are also weight-
related.
Note
Age range from 5 to 90 years.
For patients exceeding the range limits, the limit values will be
used.
A range for height is not defined.
The equation defines the following reference values: VC (same as FIVC),
MEF75, MEF50, MEF25, PEF, FVC, FEV1, FEV1/FVC.
Finland
The equation combines the reference value developed by VILJANEN and
W
ANNE.
The reference values byV
ILJANEN were published 1982 (Scand. J. clin.
Invbest. Vol. 452 Suppl. 159 1982).
The reference values are height and gender-related and are defined for
patients aged 18 to 65 years.
Note
Age range from 18 to 65 years.
For patients older than 65 years, the age is set to 65.
A range for height is not defined.
The equation defines the following reference values: MEF25, MEF50,
PEF, FVC, FEV1, FEV1/FVC, VC (same as FIVC).
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