On the basis of the results of multivariate Cox regression analysis, we incorporated 5 variables, including the CAR, extrapulmonary disseminated tuberculosis, other pulmonary infectious diseases, pulmonary cavitation, and CD4+ T-cell counts, to establish a nomogram for predicting the risk of treatment failure in patients with AIDS combined with PTB (Figure 3). This evidence concerns the gene CD4 and miliary tuberculosis.