Multivariate logistic regression analysis demonstrated that neutropenia and PCT level, but not CRP level, were significantly associated with bacteremia [odd ratio (95% CI): 8.220 (4.645–14.549) for neutropenia (P < 0.001) and 1.048 (1.025–1.071) for PCT (P < 0.001)]. Here, CRP is linked to bacterial infectious disease with sepsis.