a) Mortality per time point (p<0 a) Mortality per time point (p<0.0001); b) cumulative mortality (p<0.0001) on a nonlinear time scale according to do-not-resuscitate (DNR) status in patients with chronic obstructive pulmonary disease. a) Mortality per time point (p<0.0001); b) cumulative mortality (p<0.0001) on a nonlinear time scale according to do-not-resuscitate (DNR) status in patients with chronic obstructive pulmonary disease. The median is indicated by the dotted line. Jo Raskin et al. ERJ Open Res 2018;4:00116-2017 ©2018 by European Respiratory Society