A total of 39 variables pertinent to the diagnostic process underwent univariate analysis, revealing that ethnicity, nutritional status, site of primary infection, respiratory rate, heart rate, body temperature, N%, IG%, Hb, ALB, TBIL, K, P, Ca, Cr, Cysc, CRP, IgA, APTT, PT, D-dimer, Fib, Lac, PLT, PCT, 25 variables, were independent risk factors for the development of sepsis (P < 0.05) (Table 2). Here, CRP is linked to infection.