Fig. 2From: Relationship between TNF-α levels and psychiatric symptoms in first-episode drug-naïve patients with schizophrenia before and after risperidone treatment and in chronic patientsChanges in TNF-α Levels before and after treatment in FEDN patients. The nonparametric Wilcoxon test (for testing two related samples) showed there was no significant difference in the TNF-α levels of FEDN patients before and after 12 weeks of treatment with antipsychotic drugs (Z = -1.477, p > 0.05)Back to article page