Fig. 3
From: The clinical significance of snail protein expression in gastric cancer: a meta-analysis
Meta-analysis for the expression of snail protein in gastric cancer and normal tissue. Five of the ten studies compared the positive expression of snail protein in gastric cancer tissues with that in normal tissues, including 455 gastric cancer tissue samples and 171 normal samples. The I2 value was 49.7 % and less than 50 %; thus, we chose fixed-effect Mantel-Haenszel model for further analysis. The overall effect was Z = 10.63, OR = 17, 95 % CI = (10.08, 28.67), and P < 0.001