Univariate conditional logistic regression models (Table 3) showed that having a serum CRP or SAA level ≥ the median value was significantly associated with breast cancer relapse, with CRP OR 2.4 (95% confidence interval (CI) 1.16–5.00, p = 0.019) and SAA OR 3.38 (95% CI 1.57–7.25, p = 0.002). This evidence concerns the gene CRP and breast cancer.