GSTM1 and synovial sarcoma: There were no significant differences in age, diabetes, SS, induction therapy, and baseline level of leukocyte counts, platelets (PLT), hemoglobin (Hb), ALB, UPRO, Anti-Complement 1q antibodies (anti-C1q), CD3+ cell counts (CD3), and CD8+ cell counts (CD8) between the two groups (P > 0.05).