Table 5 Static lung volume equations for males and females (LEAD 2021)
From: Updated reference values for static lung volumes from a healthy population in Austria
Sex | Median (M) | Variability around the median (S) | Skewness (L) | |
|---|---|---|---|---|
TLC | male | exp( -0.9506 + 0.01358 * height + 0.1428 * ln(age) + mu-spline) | exp( -2.122—0.036 * ln(age) + sigma-spline) | 1 |
female | exp( -9.509 + 2.121* ln(height) + 0.109* ln(age) + mu-spline) | exp( -2.0256—0.0712 * ln(age) + sigma-spline) | 0.464 | |
FRC | male | exp(-1.9725 + 0.0153 * height + 0.1537 * ln(age) + mu-spline) | exp(-2.0920 + 0.0981 * ln(age) + sigma-spline) | 0.7562 |
female | exp(-2.02250 + 0.01494* height + 0.17902 * ln(age) + mu-spline) | exp(-1.98221 + 0.04072 * ln(age) + sigma-spline) | 1 | |
RV | male | exp(-2.2895 + 0.0122* height + 0.2502* ln(age) + mu-spline) | exp(-0.6544—0.2846* ln(age) + sigma-spline) | 1.4778—0.3313 * ln(age) |
female | exp( -2.3026 + 0.0123* height + 0.2516* ln(age) + mu-spline) | exp( -0.707—0.265 * ln(age) + sigma-spline) | 1.685—0.369 * ln(age) | |
RV/TLC | male | exp(3.2352—0.0010 * height + 0.09698 * ln(age) + mu-spline) | exp(-0.8449—0.3138 * ln(age) + sigma-spline) | 3.644—1.032 * ln(age) |
female | exp (3.258—0.0012 * (height) + 0.131 * ln(age) + mu-spline) | exp(-0.9245—0.292* ln(age) + sigma-spline) | 2.53—0.5187* ln(age) | |
IC | male | exp(-9.504 + 2.001* ln(height) + 0.111* ln(age) + mu-spline) | exp( -1.68196—0.03498* ln(age) + sigma-spline) | 0.6339 |
female | exp(-8.5626 + 1.8228 * ln(height) + 0.0560 * ln(age) + mu-spline) | exp( -1.4862—0.09097 * ln(age) + sigma-spline) | 0.7076 | |
ERV | male | exp( -3.40565 + 0.01892 * height + 0.11655 * ln(age) + mu-spline) | exp( 0.3466—0.3694 * ln(age) + sigma-spline) | 2.4951–0.4487 * ln(age) |
female | exp( -3.26931 + 0.01919 * height + 0.03159 * ln(age) + mu-spline) | exp(-0.6865—0.0707 * ln(age) + sigma-spline) | 0.7913 |