Elhelbawy et al. [24] found a significant association between CCR2–641 and chronic renal failure, particularly the AG genotype (OR = 2.8, 95% CI = 1.40–5.51), combined AG and GG genotypes (OR = 4.1, 95% CI = 1.27–13.03) and A allele (OR = 2.9, 95% CI = 1.14–7.3). The gene discussed is CCR2; the disease is chronic kidney disease.