Table 1.
Age, sex and race specific coefficients used to predict FEV1 for the equations of Hankinson et al. [18]a
| Sex | Race | Age | b0 | b1 | b2 | b3 |
|---|---|---|---|---|---|---|
| Male |
Caucasian |
<20 |
−0.7453 |
−0.04106 |
0.004477 |
0.00014098 |
| |
|
20+ |
0.5536 |
−0.01303 |
−0.000172 |
0.00014098 |
| |
African-American |
<20 |
−0.7048 |
−0.05711 |
0.004316 |
0.00013194 |
| |
|
20+ |
0.3411 |
−0.02309 |
0 |
0.00013194 |
| |
Mexican-American |
<20 |
−0.8218 |
−0.04248 |
0.004291 |
0.00015104 |
| |
|
20+ |
0.6306 |
−0.02928 |
0 |
0.00015104 |
| Female |
Caucasian |
<18 |
−0.8710 |
0.06537 |
0 |
0.00011496 |
| |
|
18+ |
0.4333 |
−0.00361 |
−0.000194 |
0.00011496 |
| |
African-American |
<18 |
−0.9630 |
0.05799 |
0 |
0.00010846 |
| |
|
18+ |
0.3433 |
−0.01283 |
−0.000097 |
0.00010846 |
| |
Mexican-American |
<18 |
−0.9641 |
0.06490 |
0 |
0.00012154 |
| 18+ | 0.4529 | −0.01178 | −0.000113 | 0.00012154 |
a The equation is of the form: FEV1 (predicted) = b0 + b1 age(years) + b2 age(years)2 + b3 height(cm)2. The coefficients are taken from Tables 4 and 5 of Hankinson et al.[18].