Fig. 6
From: The clinical significance of snail protein expression in gastric cancer: a meta-analysis
Meta-analysis for the relationship between snail expression and TNM stage. Five studies analyzed the relationship between snail expression and the TNM stage. The result showed that the I2 value was 0 % and less than 50 %, thus we chose fixed-effect Mantel-Haenszel model for further analysis. The overall effect was Z = 4.02, OR = 0.38, 95 % CI = (0.23, 0.60), and P < 0.001