Randomization
TB
Eligible participants selected for the RCT were randomly classified into the preventive treatment group or control group by sex using computer-generated random numbers. All eligible participants were centrally allocated a sequential study identifier by the RCT statistician and then randomly assigned to one of the two groups. Participants, study team, and statistical analysts were not blinded to treatment assignment. However, the panel members for evaluation and diagnosis of TB were fully unaware of the trial-group assignments.