CD4 and HIV infectious disease: Table 2 summarizes the demographic characteristics by HIV serostatus and HIV disease and treatment status of PWH; none of the demographic differences were statistically significant. Among PWH, the mean duration of HIV infection was 27.0 (9.46) years, the nadir CD4 + T lymphocyte count was 300, and the current CD4 + was 644; 100% took ART, and all were virally suppressed. Table 3 compares the demographic and HIV disease and treatment characteristics of PWH without CP (n = 16) and with CP (n = 24).