On the patients’ groups comparisons (RA-ILD vs. RA), only an SNV in PADI2 was found to be significantly associated; homozygous genotype rs1005753-GG shows a strong association with the risk as well (OR = 4.91, 95% CI = 1.00–24.05), and the minor allele of rs1005753-G showed an increased risk (OR = 1.71 [1.10–2.64]) (see in Table 2). The gene discussed is PADI2; the disease is rheumatoid arthritis.