Figure 1From: Predicting results of mycobacterial culture on sputum smear reversion after anti-tuberculous treatment: a case control study Each of the Mycobacterium tuberculosis (Mtb) and non-Mtb groups was divided into two sub-groups based on susceptibility results of the pre-treatment M. tuberculosis isolates. Time to smear reversion was plotted by the Kaplan Meier method and compared using log-rank test.Back to article page