| Gender | Male Female |
| Age (yrs) | |
| Race | Caucasian African American Mexican American |
| Height | |
| unit | cm in |
| Show value for | 90 % 85 % 80 % 75 % 70 % 65 % 60 % 55 % 50 % 45 % 40 % 35 % 30 % 25 % |
Results predicted by NHANES III
J.L. Hankinson, J.R. Odencrantz, and K.B. Fedan, Spirometric Reference Values from a Sample of the General U.S. Population. Am J Respir Crit Care Med, Vol 159, pp. 179-187, 1999.