Description

The peak expiratory flow rate (PEFR) in adults can be predicted based on physical characteristics.


 

NOTE: PEFR is referred to as Vmax in Cherniack et al.

 

PEFR in liters per second for White males 15-79 years (Cherniack, 1972) =

= (0.14393 * (height in inches)) - (0.02403 * (age in years)) + 0.22544

 

PEFR in liters per second for White females 15-79 years (Cherniack, 1972) =

= (0.09130 * (height in inches)) - (0.01776 * (age in years)) + 1.13160

 

PEFR in liters per second for White males 25-85 years (Knudson, 1976) =

= (0.094 * (height in cm)) - (0.035 * (age in years)) - 5.993

 

PEFR in liters per second for White females 20-88 years (Knudson, 1976) =

= (0.049 * (height in cm)) - (0.025 * (age in years)) - 0.735

 

PEFR in liters per second for White males 18-86 years (Roberts, 1991) =

= (5.317 * (height in meters)) - (0.062* (age in years)) + 3.884

 

PEFR in liters per second for White females 18-86 years (Roberts, 1991) =

= (4.087 * (height in meters)) - (0.050* (age in years)) + 2.945

 


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