Data with a P < 0.1 in a univariable analysis and age division were entered into the multivariate Cox proportional hazard model including age (P > 0.1), admission after June 15, 2016 (P = 0.035), presence of thrombocytopenia (P < 0.001), HB <9 g/dL (p = 0.002), Scr ≥104 μmol/L (p = 0.026), being at WHO stage III–IV (P = 0.036), CD4 <200 cells/μL (P = 0.087), prevalent TB (P = 0.006), malignancies (P = 0.005), ART status prior to admission (P = 0.002), and fever duration >7 days before admission (P = 0.026). The gene discussed is CD4; the disease is Thrombocytopenia.