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  PFT Predicted Values for Men MultiCalc

Race Asian (0.93)

Black or African American (0.87)

White (1)

FEV1 FVC Ratio  
Decimal Precision  

Include literature references: Yes   No
  • The residual standard deviation (RSD) for FEV1 is 0.51 litres.
  • For FVC, the RSD is 0.61 litres and for the FEV1/FVC Ratio, the RSD is 7.17%.

Equations used
FEV1 = Race * ((0.043 * Height) - (0.029 * Age) - 2.49 )
FVC = Race * ((0.0576 * Height) - (0.0269 * Age) - 4.34 )
FEV1FVCRatio = 87.2 - (0.18 * Age)


Calculation Details and Variables
  • Equation parameters such as Race, have two or more discrete values that may be used in the calculation. The numbers in the parentheses, e.g. (0.93), represent the values that will be used.

  1. Quanjer PhH, Tammeling GJ, Cotes JE, et al. Lung volume and forced ventilatory flows. Report Working Party Standardization of lung function tests. Official Statement European Respiratory Society. Eur Respir J. 1993; 6 Suppl 16: 5-40. PubMed ID: 8499054 PubMed Logo
  2. Falaschetti E, Laiho J, Primatesta P, Purdon S. Prediction equations for normal and low lung function from the Health Survey for England. Eur Respir J. 2004 Mar;23(3):456-63. PubMed ID: 15065839 PubMed Logo
  3. Internet Site: Become an Expert in Spirometry Website, http://www.spirxpert.com/

Associated Medical Subject Headings [MeSH]
         80 and over,   Adolescent,   Adult,   Aged,   Cross-Sectional Studies,   European Continental Ancestry Group,   Female,   Forced Expiratory Volume,   Health Surveys,   Humans,   Lung,   Lung Volume Measurements,   Male,   Medical,   Middle Aged,   Pulmonary Ventilation,   Reference Values,   Regression Analysis,   Respiratory Function Tests,   Societies,   Spirometry,   Vital Capacity

Associated Logical Observation Identifiers Names and Codes [LOINC]
Parameter LOINC's and Suggested Units
Height 8302-2 : cm      8301-4 : cm      3137-7 : cm      
Age 21612-7 : yr      21612-7 : yr      21612-7 : years      30525-0 : Years old      30525-0 : yr      30525-0 : years      
FEV1 20150-9 : L      

This material contains content from LOINC® (http://loinc.org). The LOINC table, LOINC codes, and LOINC panels and forms file are copyright © 1995-2014, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and available at no cost under the license at http://loinc.org/terms-of-use.

Associated ICD10-CM Codes
   J98.2Interstitial emphysema
   J43.9Emphysema, unspecified
   J98.3Compensatory emphysema
   J42Unspecified chronic bronchitis
   I27.9Pulmonary heart disease, unspecified
   I27.81Cor pulmonale (chronic)

Associated ICD9-CM Codes
   518.82Other pulmonary insuff
   416.9Chr pulmon heart dis nos
   491.9Chronic bronchitis nos
   518.2Compensatory emphysema
   492.8Emphysema nec
   518.1Interstitial emphysema

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