Mean plasma HIV-1 viral load (interquartile range), log10 copies/mLb
aThe age at HIV-1 antibody positive means the age of the patient when he/she was examined with the earliest HIV-1 antibody positive result. The HIV-1 antibody positive results were obtained from the department of medical and laboratory examination database at our hospital.
bThe HIV-1 viral load was measured in peripheral blood when the patient was examined with the earliest HIV-1 antibody positive result. Any measurements taken after the initiation of antiretroviral therapy were not used in any analyses.