Total lymphocyte count: a surrogate marker for predicting CD4+ count in enrolled process for antiretroviral therapy in resource-limited settings.

OBJECTIVE: The purpose of the present study was to evaluate the correlation between total lymphocyte count (TLC) and CD4+ count and TLC cut-off for predicting CD4+ count 200 cells/mm3 and 115 (65.3%) had CD4+ < 200 cells/mm3. The ROC curve between CD4+ count and TLC showed TLC < 1,800 cells/mm3 could predict CD4+ count < 200 cells/mm3 with 78.26% sensitivity, 73.77% specificity, 84.91% PPV, and 64.29% NPV. The sensitivity was further decreased and specificity was increased when TLC was lower than cut-off. CONCLUSION: The presented finding indicates that the appropriated TLC for predicting CD4+ count. < 200 cells/mm3 was TLC < 1,800 cells/mm3. TLC can also be used as a surrogate marker for starting ARV therapy in resource limited setting.