Characteristics of two study populations with longitudinal and cross-sectional data, respectively.

Notes: HIV-1 viral load (VL) in plasma (RNA copies/mL) and CD4+ T-cell (CD4) count in peripheral blood (cells/µL) are the two outcomes (see text). The two subgroups with existing PBMC samples share similar features at study entry (p>0.45 in all comparisons).备注：血浆中HIV-1病毒载量（viral load, VL）（RNA拷贝数/毫升）与外周血CD4阳性T淋巴细胞（CD4+ T-cell）计数（细胞/微升）为两项结局指标（详见正文）。两个留存有外周血单个核细胞（peripheral blood mononuclear cell, PBMC）样本的亚组在研究入组时具有相似的基线特征，所有对比的P值均大于0.45。