CD4 and HIV infectious disease: The majority of PLWH were male (82.8%), were aged 25–44 years old (49.5%), married (41.1%), Han ethnicity (96.6%), had at least a junior high school education (76.9%), were heterosexual route of HIV infection (55.0%), originally from local residence (82.7%), had a current CD4 + T count >200 cells/μL (91.8%), and had been followed-up more than 2 years after HIV diagnosis (90.3%).