Fig. 3: Time to first episode of asthma worsening (PrimoTinA-asthma)19.
From: Asthma exacerbations and worsenings in patients aged 1–75 years with add-on tiotropium treatment
A Kaplan–Meier curve of adults with symptomatic severe asthma receiving either tiotropium 5 µg once daily or placebo who reported at least one episode of asthma worsening over the 48-week trial period. From ref. 19. Copyright © 2012 Massachusetts Medical Society. Reprinted with permission.
