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Miscellaneous: Reference Value Equations, Interpretation Modes, Measurements
Finland
The equation combines the reference value developed by VILJANEN and
WANNE.
The reference values byVILJANEN 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).
The reference values by WANNE are height and gender-related and are
defined for patients aged 6 to 17 years.
Note
Age range from 6 to 17 years.
For patients younger than 6 years, the age is set to 6.
A range for height is not defined.
The equation defines the following reference values: MEF50, PEF, FVC,
FEV1, FEV1/FVC, VC (same as FIVC).
Brazil
The Brazil equation is based on the reference values by PEREIRA and
MALLOZI.
The reference values by PEREIRA were published 1992 (Jornal de
Pneumologia 1992; 18:10-22).
The reference values are height and gender-related and are defined for
men aged 25 to 78 years and women aged 20 to 78 years.
B-14 CardioSoft Revision A
2023324-053