Fig. 3.
Behavior of baseline abnormal lung densities. Percentage of volume change of baseline abnormal densities as a function of time at end expiration (black dots) and end inspiration (white dots). The volume of abnormal baseline densities at end-inspiration did not change significantly (P = 0.84), whereas it significantly increased at end-expiration (P < 0.01). Volume increase (%) = 0.92 + 0.91 × e0.26 × hours, r2 = 0.99, P < 0.0001.