Study characteristics of the meta-analysis.

Abstract

<p>AML, acute myeloid leukemia; ALL, acute lymphocytic leukemia; CML, chronic myeloid leukaemia; CLL, chronic lymphocytic leukemia; HWE, <i>P</i> value of Pearson’s goodness-of-fit χ2 test for Hardy-Weinberg equilibrium; QA, quality assessment; Unknown, including study populations in which the race was mixed/unclear or tumor type was not described.</p