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. 2017 Dec 28;12(12):e0189999. doi: 10.1371/journal.pone.0189999

Fig 7. ROC curves comparing the performance of the 4 sequence-based diversity measures for discriminating recent from chronic HIV-1 infection.

Fig 7

Four selected HIV-1 gp120 conserved subdomains (C2, C3, C4 and C5) subdivided on seven segments were analyzed, 3 segments on the gp120-C2 region (C2_1; C2_2 and C2_3), 2 segments on the gp120-C3 region (C3_1 and C3_2), 1 segment on gp120-C4 and 1 segment on gp120-C5. The Y axis represents the proportion of sequences from true recent HIV-1 infected individuals (sensitivity), and the X axis the proportion of recent HIV-1 infected individuals who were incorrectly classified (1-specificity). ROC = receiver operating characteristics. AUC (area under the curve) values between 0.8 and 1 were considered performance measures.