Fig. 1.

Comparison of CD4⁺ T-cell counts and increase cutoff values as classifiers for immune recovery.

(a) The performance of different definitions of immune recovery according to CD4⁺ T-cell counts (a1) or CD4⁺ T-cell increases (ΔCD4, a2) was assessed by analyzing the out-of-bag error. The best classifier in each case is highlighted. (b) Summary of variables of importance for each classification (panel b1 cutoff values, panel b2 increase in CD4⁺ T-cell count values). For each classifier, the size of the symbol indicates the Gini index. The highest Gini index for each classification is highlighted. Abs, absolute counts; CMV, cytomegalovirus.