CAT and B-cell chronic lymphocytic leukemia: Distribution of CAT rs1001179 SNP genotypes was consistent with the Hardy–Weinberg equilibrium among the 235 CLL patients and the 123 HDs (for CLL patients' rs1001179 polymorphism, χ2 = 0.1566, p > 0.05; for HDs' rs1001179 polymorphism, χ2 = 0.0999, p > 0.05).