Fig. 2

Cluster composition among different ILD subtypes. Clusters are represented by different color bars, with IPF, CTD-ILD, fibrotic HP, and unclassifiable ILD having 4, 4, 2, and 3 clusters each, respectively. The x-axis labels show the total number of patients with a given feature within each ILD subtype. The percentage of females and the percentage of patients with each comorbidity is shown for each cluster on the y-axis. For example, of the 39 patients with IPF who had a MI, 15% were in cluster 2 and 85% were in cluster 3. *Denotes patients who did not have any comorbidities of interest. Abbreviations: MI myocardial infarction; CHF congestive heart failure; CVD cerebrovascular disease; GERD gastroesophageal reflux disease; OSA obstructive sleep apnea