Fig. 2From: Antifibrotics and mortality in idiopathic pulmonary fibrosis: external validity and avoidance of immortal time biasForest plots of a subgroup intention-to-treat analysis of the effects of nintedanib and pirfenidone on mortality. Full versions of these figures are shown in Additional file: Figures S5 and S6. HR, hazard ratio; CI, confidence intervalBack to article page
