Fig. 2From: Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort studyPrevalence of comorbidities in patients with idiopathic pulmonary fibrosis at the time of diagnosis (blue), 1Â year after diagnosis (orange) and 3Â years after diagnosis (grey). We presented the change of prevalence at three different time points of respiratory comorbidities (A) and non-respiratory comorbidities (B) Abbreviations: GERD, gastro-oesophageal reflux disease; COPD, chronic obstructive pulmonary diseaseBack to article page