CRP and schizophrenia: As shown in Fig. 2, the random-effects model revealed that the serum CRP levels were significantly higher in patients with schizophrenia than in the controls (SMD = 0.62; 95% CI, 0.24–0.99; p = 1.4 × 10−3) with significant heterogeneity among studies (I2 = 96.4%; p < 0.05).