Tuberculosis preventive treatment among individuals with inactive tuberculosis suggested by untreated radiographic abnormalities: a community-based randomized controlled trial.

Further subgroup analyses showed that the respective protective rate was 55.42% (95% CI: 10.33–93.07%) ( p = .454) and 80.17% (95% CI: 25.36–97.96%) ( p = .104) for the participants with fibrosis and for those aged older than 60 years, although it did not reach statistical significance ( Table 3 ).

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