Plasma viral load and p24-antigen in plasma and erythrocytes from individuals with detectable plasma viral load in at least one sample during the year prior to the study.

pVL: plasma viral load at the moment of the study.Ag-E (pg/ml): pg erythrocytes-associated p24-antigen per milliliter of purified erythrocytes.Ag-P (pg/ml): pg p24-antigen per milliliter in plasma.NR: non reactive.Median: median was calculated having in mind the detectable values.IQR: interquartile range. In all cases used, IQR was calculated considering only detectable values.*: this value was considered positive because it was under 20 pg but over the cut-off (value