The outcome variable was time to LTFU, in weeks. The source of the data was the National Tuberculosis and Leprosy Programme Unit TB registers for the years 2017 to 2020. Kaplan Meier method was used to obtain univariate descriptive statistics and compare the survival experience by the categorical variables. Bivariate and multivariable analyses were performed using both the Cox and the parametric models and then the models were compared using Akaike’s Information Criteria(AIC). 
