CD4 and tuberculosis: Furthermore, studies in other settings have identified several determinants of unsuccessful treatment outcomes among HIV-infected TB patients, including not receiving cotrimoxazole therapy, adverse event during treatment, pulmonary TB case, retreatment TB case, noninitiation of ART, intravenous drug use, gender, lymphadenopathy, low serum albumin, and CD4+ count below 200 cells/mL [9–11, 13, 14, 16].