CD4 and AIDS: When we compared the 24,542 patients who continued the follow-up until the end of 2014 with the 8486 patients who had died from AIDS as underlying cause, we found among the patients who died a higher proportion of TB co-infected patients (9.8% versus 20.9%; p < 0.001), individuals with up to 7 years of schooling (11.3% versus 21.7%; p < 0.001), individuals with CD4 count below 200 cells/mm3 at diagnosis (13.6% versus 20.9%; p < 0.001), and patients who did not receive ARV (10.0% versus 22.5%; p < 0.001).