Figure 3.

Course of FEV₁%pred after BOS onset in lung transplant recipients by pretransplant diagnosis. Trajectories for FEV₁%pred after BOS onset for patients with pretransplant diagnosis of idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD) are shown, adjusted for age, gender, time-to-BOS, type of transplant, transplant date, and 6-month pre-BOS relative change in FEV₁ (rapid vs. gradual onset of BOS). The steeper decline during the 6 months after BOS onset for recipients with IPF compared with those with COPD was statistically significant when adjusted for age, gender, time-to-BOS, type of transplant, transplant date, and 6-month pre-BOS relative change in FEV₁ (p = 0.04). Numbers of patients with COPD and IPF at the onset of each time interval are displayed at the bottom.