<p>Tuberculosis remains the top infectious killer worldwide. The proportion of patients who successfully complete treatment is one of the priority indicators of the TB program’s performance. A better understanding of the time when patients are lost to follow-up and assessment of the associated risk factors are cornerstones for designing time-relevant intervention strategies. Survival models enable the prediction of the survival time of patients on treatment by studying the time between treatment initiation and LTFU. We compared survival analysis models to establish the best model for analyzing time to loss to follow-up on TB treatment.</p>