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. 2017 Oct 23;12(10):e0186697. doi: 10.1371/journal.pone.0186697

Table 1. Operational definitions of TB treatment outcomes: end of intensive phase and end of treatment [34].

At the end of treatment
Cured A pulmonary TB patient with bacteriologically-confirmed TB at the beginning of treatment who was smear- or culture-negative in last month of treatment and on at least one previous occasion
Treatment completed A TB patient who completed treatment without evidence of failure, but with no record to show that sputum smear or culture results in the last month of treatment and on at least one previous occasion were negative, either because tests were not done or because results are unavailable.
Lost to follow-up A TB patient who did not start treatment or whose treatment was interrupted for two consecutive months or more.
Treatment failed A TB patient whose sputum smear or culture is positive at month five or later during treatment.
Died A TB patient who dies for any reason before starting or during the course of treatment
Not evaluated A TB patient for whom no treatment outcome is assigned. This includes cases “transferred out” to another treatment unit as well as cases for whom the treatment outcome is unknown to the reporting unit.
Unfavourable outcome Died, treatment failed, lost to follow-up, not evaluated
Favourable outcome Treatment completed, cured
At the end of intensive phase (2 months for new patient, 3 months for a previously treated patient)
Unfavourable outcome Died, Lost to follow-up, extension of intensive phase and non-conversion at three/four months
Favourable Microbiological conversion