CD4 and HIV infectious disease: Of the 3,235 patients, 63.37% were aged 31–50 years, 52.49% were male, 82.87% were married, 90.11% reported former plasma donors as the route of HIV infection, 39.54% had WHO stage II HIV disease, 51.56% had been treated for >6 years, 27.02% have CD4 counts ≥350 cells/μL, 58.83% have virus load in between 3 and 4 log copies/ml.