Three patients in the IIPs group (12.0%) had the sensitive epithelial growth factor receptor (EGFR) mutation (1 in the UIP group [8.3%] and 2 in non-UIP IIPs group [15.3%]) compared to 28 in the non-ILD group (31.8%; p = 0.088). Here, EGFR is linked to idiopathic pulmonary fibrosis.