Fig. 1
From: Clinical course and management of idiopathic pulmonary fibrosis
Examples of disease course in patients with IPF. Daily FVC measurements for subjects with (a) inexorably progressive disease, (b) rapidly progressive disease, and (c) an acute exacerbation. Each point represents a single FVC measurement. From: Russell et al., 2016 [8]. Reprinted with permission of the American Thoracic Society. Copyright© 2018 American Thoracic Society. Russell AM, et al./2016/Daily home spirometry: an effective tool for detecting progression in idiopathic pulmonary fibrosis/Am J Respir Crit Care Med/194/989–997. The American Journal of Respiratory and Critical Care Medicine is an official journal of the American Thoracic Society