IFIH1 and arthritic joint disease: No significant publication bias was found by using Begg’s and Egger’s tests for age at diagnosis (P = 0.876, P = 0.398), female sex (P = 1.000, P = 0.458), Gottron’s sign (P = 1.000, P = 0.871), heliotrope rash (P = 1.000, P = 0.942), arthritis/arthralgia (P = 0.451, P = 0.08), Raynaud’s phenomenon (P = 0.452, P = 0.277), dysphagia (P = 1.000, P = 0.273), malignancy (P = 0.707, P = 0.271), fever (P = 1.000, P = 0.573), ALT level (P = 1.000, P = 0.919), ESR (P = 0.462, P = 0.182); or anti-MDA5 antibody (P = 0.108, P = 0.108; Table 2).