The third variant, rs1799899*A located in exon region of Transferrin (TF) gene was significant for Germans [2.89 (6.47–1.30); 1.12 × 10−2], French [2.20 (4.65–1.04); 4.58 × 10−2], and in combined IPF [2.06 (3.78–1.12); 1.87 × 10−2] cases. This evidence concerns the gene TF and idiopathic pulmonary fibrosis.