MTA1 and neoplasm: The data of 95% CI was displayed as "[a-b]".<h4>Results</h4>According to the meta-analysis, the expression level of MTA1 was tightly associated with the tumor size (OR=1.82 [1.16-2.84], <i>P</i>=0.009), tumor tissue differentiation (OR=1.71 [1.24-2.37], <i>P</i>=0.001), depth of invasion (OR=3.12 [2.55-3.83], <i>P<</i>0.001), lymphatic metastasis (OR=2.99 [2.02-4.43], <i>P</i><0.001), distant metastasis (OR=4.66 [1.13-19.24], <i>P=</i>0.034), TNM stage (OR=4.28 [2.76-6.63], <i>P</i><0.001).