A schematic diagram of the multistate model in patients with pulmonary tuberculosis. The number in each state indicates the number of patients staying in the state at the end of study. The number on each transition rate indicates the total of transition events observed throughout the 120 week study (a 24 week investigational treatment period followed by a 96 week follow-up period). λ_ij describes the transition rate from state i to state j. Note that λ₁₂ represents conversion, and λ₂₃ represents recurrence.