Predicted Values; Predicted Values For Adults; Predicted Values For Children - NDD EasyOne-CS Manuel De L'utilisateur

2030434-002 Rev. B

11 Predicted Values

EasyOne-CS offers a number of published predicted value tables allowing comparison of the measure-
ment results. In order to compute the predicted values, it is necessary to enter the sex, age and height
and, in many cases, the ethnic group and the weight of the patient. See also Chapter 8 on selection of
the predicted values.
Where there is no lower limit of normal (LLN) defined within the selected predicted normal, the value
used for LLN is calculated as Predicted Value – 1.645 x SEE (standard error of the estimate). If SEE is
not defined LLN of relational parameters, e.g. FEV1/FVC are set to 90% of Predicted Value, LLN of all
other parameters are set to 80% of Predicted Value.
If the patient data lies outside of the range defined in the publication (Age, Height) EasyOne-CS uses
extrapolated values. The report explicitly points out that the predicted values are extrapolated values
and that, consequently, particular caution must be taken when interpreting the results.

11.1 Predicted Values for Adults

[1] Morris, James F., Koski, Arthur, Lavon Johnson, "Spirometric Standards for Healthy Non-Smoking
Adults", Am Rev Resp Dis, Vol. 10-3, 1971. p.57-67
[2] Morris, James F., Koski, Arthur, Breese, John, 'Normal Values and Evaluation of Forced Expiratory
Flow', Am Rev Resp Dis, Vol. 111, 1975, p.755-761.
[3] Cherniak, R.M. and Raber M.B. 'Normal Standards for Ventilatory Function using an Automated
Wedge Spirometer', Am Rev Resp Dis, Vol. 106, 1972, p.38-46.
[4] Knudson, Ronald J., Ronald Slatin, Michael Lebowitz, Benjamin Burrows, 'The Maximal Expiratory
flow-Volume Curve', Am Rev Resp Dis, Vol. 113, 1976, p. 587-600.
[5] Knudson, Ronald J., Michael Lebowitz, Holberg Catherine J., Benjamin Burrows, 'Changes in the
Normal Maximal Expiratory Flow-Volume Curve with Aging', Am Rev Resp Dis, Vol. 127, 1983, p.
725-734
[6] Crapo, Robert O., Gardner Reed M., Morris Alan H., 'Reference Spirometric Values Using Tech-
niques and Equipment that Meets ATS Recommendations', Am Rev Resp Dis, Vol. 123, 1981, p.
659-674
[7] Forche G., Harnoncourt K., Stadlober E.. 'Neue spirometrische Bezugswerte für Kinder,
Jugendliche und Erwachsene', Öst. Ärzteztg. 43/15/16 (1988) 40
[8] P.H. Quanjer. Lung Volumes and Forced Ventilatory Flows. Eur Respir J, Vol 6, Suppl 16, p.5-40,
1993
[9] NHANES III: Hankinson, Odencrantz, Fedan, 'Spirometric Reference Values from a Sample of the
General U.S. Population," Am J Respir Crit Care Med, Vol. 159, 1999, p 179-187.

11.2 Predicted Values for Children

[1] Zapletal, T. Paul, M. Samanek. "Die Bedeutung heutiger Methoden der Lungenfunktions-
diagnostik zur Feststellung einer Obstruktion der Atemwege bei Kindern und Jugendlichen." Z.
Erkrank. Atm.-Org., Volume 149, 343-371, 1977
[2] Hsu KHK, Bartholomew PH, Thompson V, Hseih GSJ, "Ventilatory Functions of Normal Children &
Young Adults – Mexican-American, White, Black. I. Spirometry", J. Pediatrics 1979, 95: p.14-23
[3] NHANES III: Hankinson, Odencrantz, Fedan, 'Spirometric Reference Values from a Sample of the
General U.S. Population', Am J Respir Crit Care Med, Vol. 159, 1999, p 179-187.
[4] Dockery, D.W. et al., Distribution of Forced Vital Capacity and Forced Expiratory Volume in One
Second in Children 6 to 11 Years of Age, Am Rev Resp Dis, Vol. 128, p. 405-412, 1983
[5] Polgar, Promadhat, Pulmonary Function Testing in Children: Techniques and Standards. W.B.
Saunders Co., Philadelphia, 1971
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