With significant heterogeneity (P= 0.02, I2= 66%), random-effects model showed the CD147 positive rate in renal cancer tissues was higher (83.99% vs. 75.84%) (OR= 8.19, 95%CI= (2.74, 24.52), P= 0.0002) (Figure 3). The gene discussed is BSG; the disease is renal carcinoma.