Figure 3.

Clinical outcomes as represented by changes in FEV₁% predicted and C-reactive protein (CRP) pre– and post–antibiotic therapy in the development cohort. The left panel represents changes in FEV₁% predicted at initiation (Pre-Rx) and termination (Post-Rx) of antibiotics. Box plot boundaries represent 25th–75th quartiles of values, with median line within the box, and whiskers representing FEV₁% predicted ranges. CRP values in mg/dl are also depicted in pre- and post-therapy groups, with normal standard range. *P = 0.02 for differences between FEV₁% predicted pre- and post-therapy by paired t test. P = 0.09 for differences between pre- and post-therapy CRP values by paired t test.