Fig. 1From: Cost-effectiveness of the anti-fibrotics for the treatment of idiopathic pulmonary fibrosis in the United StatesMarkov model of lung function for idiopathic pulmonary fibrosis. The Markov model breaks up a disease into health states (in circles, i.e. 100% FVC, death) and health events. When a health event happens (e.g. worsening lung function), it is denoted as a transition (signified by arrows) to another health state. FVC forced vital capacityBack to article page