CXCR1 and cancer: In a multivariable model, the CXCR1 rs2234671 genotype was also significantly associated with reduced DFS disease-free (RR = 3.679 95% CI = 1.399–9.672 p = 0.008), cancer-specific (RR = 4.957 95% CI = 1.922–12.781 p = 0.001) and overall survival (RR = 3.761 95% CI = 1.727–8.190 p = 0.001)