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. 2017 Feb 4;64(9):1191–1197. doi: 10.1093/cid/cix095

Table 1.

Characteristics of the Study Cohorts

Characteristic Progressors LTNP Pediatric
No. 483 169 122
Age, y, median (IQR) 37 (31–43) 42 (39–42) 14 (9–17)
Age at diagnosis, y, median (IQR) 35 (29–42) 25 (22–31) 0
Sex (male) 383 (79) 111 (66) 51 (42)
Transmission risk (sexual) 389 (81) 35 (21) 0
Time since diagnosis, y, median (IQR)a 0.4 (0.1–1.0) 15 (13–19) 14 (9–17)
CD4 T-cell count, cells/µL, median (IQR) 365 (200–548) 721 (552–966) 843 (653–1166)
CD4 nadir, cells/µL, median (IQR) 246 (126–337) 521 (390–657) 418 (205–636)
Viral load, log10 HIV-RNA copies/mL, median (IQR) 4.5 (3.7–5.1) 2.0 (1.7–3.2) 1.5 (1.3–1.7)
Naive for antiretroviral treatment 337 (70) 169 (100) 0 (0)

Data are presented as No. (%) unless otherwise indicated.

Abbreviations: HIV, human immunodeficiency virus; IQR, interquartile range; LTNP, long-term nonprogressor.

aTime since diagnosis is time since infection in the pediatric cohort.