Training set Test set
TCEs 7,263 375
Mean (median) baseline VL (log10 c/mL) 4.20 (4.11) 4.34 (4.30)
Mean (median) baseline CD4(cells/μL) 269 (230) 277 (235)
Treatment History    
Mean (median) number of previous drugs 5.82 (5) 5.56 (5)
NRTI experience 99% 100%
NNRTI experience 65% 54%
PI experience 75% 79%
Enfuvirtide experience 6% 0%
Raltegravir experience 1% 1%
Mean (median) resistance mutations 8.48 (6) 8.34 (8)
Responders(<1.7log10 c/mLfollow-up VL) 2,550 (35%) 18 (5%)
Failures(≥1.7log10 c/mLfollow-up VL) 4,713 (65%) 357 (95%)
TCEs=treatment change episodes. VL=viral load. NRTI=nucleoside reverse transcriptase inhibitor. NNRT=non-nucleoside reverse transcriptase inhibitor. PI=protease inhibitor
Table 1: Data description.
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