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. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: Cancer Prev Res (Phila). 2011 Jun;4(6):793–802. doi: 10.1158/1940-6207.CAPR-11-0057

Figure 2.

Figure 2

Six-month histology as a function of baseline average histology in all subjects (A), former smokers (B), and current smokers (C) comparison of average histology measures on initial and follow-up bronchoscopy of subjects completing the trial (60 iloprost subjects and 65 placebo subjects). Illustrates consistent improvement across the entire histologic spectrum in former smokers receiving iloprost (P = 0.010) and a lack of effect in all subjects (P = 0.210) and current smokers (P = 0.743).