Fig. 5
From: The clinical significance of snail protein expression in gastric cancer: a meta-analysis
Meta-analysis for the relationship between snail expression and the differentiation. Seven studies analyzed the relationship between snail expression and the differentiation. The result indicated 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 = 5.80, OR = 3.34, 95 % CI = (2.22, 5.03), and P < 0.001