Compared with the nonpneumonia-related bacteremia group, the pneumonia-related bacteremia group had a high level of blood urea nitrogen [P = 0.001; 12.85 (7.1, 19.1)], C-reactive protein [P = 0.047; 89.5 (54.57, 153.21)], SOFA score [P < 0.001; 8((7, 11)], and PITT score [P < 0.001; 6 (4, 9)]. The gene discussed is CRP; the disease is bacterial infectious disease with sepsis.