ADAM17 and neoplasm: There are no association between ADAM17 expression and tumor differentiation (OR = 0.48, 95% CI 0.21–1.11; I2 = 84.6%; p = 0.000) and sex (OR = 0.96, 95% CI 0.75–1.21; I2 = 23.2%; p = 0.260).