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CD44 is such one adhesion molecule that mediates interactions between acute myeloid leukemia (AML) cells and stromal. It has been demonstrated that CD4 plays a critical role in AML development. However, studies of functional single nucleotide polymorphisms (SNPs) in CD44 gene have not touched upon AML. This case–control study probed the contribution of functional SNPs in CD44 gene to AML susceptibility in eastern Chinese population. Five representative SNPs of CD44 (rs10836347C>T, rs13347C>T, rs1425802A>G, rs11821102G>A, rs713330T>C) were opted and genotyped in 421 AML patients and 461 healthy subjects and the association with risk of AML was estimated by logistic regression. Moreover, the potential role of rs13347C>T in AML was further explored. Compared with the rs13347CC genotype, CT carriers had a significant increase in AML susceptibility (adjusted odds ratio [OR] = 1 …