Time since HIV-1+ diagnosis until disease progression in patients who have been infected with HIV-1 for more than 7 years and who remain symptomless in the absence of ART.

Patients are stratified according to a history of at least one CD4+ T-cell count below the normal range (<450 cells/µl blood).

†, ‡

See Figure 1 for definition of patient groups.

#

median (IQR) years.

p-values using the Logrank chi-squared test.