Univariate analysis indicated that the male, low GCS score, long length of stay in neuro-ICU, diabetes, low ALB level, low RBC count, high PCT level, high urea value, high PH value, low blood glucose value, and the number of types of antibiotics ≥ 2 were significantly associated with CRAB infections (Table 2). The gene discussed is ALB; the disease is diabetes mellitus.