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(A) Impact of staff education on TB treatment outcomes. (B) Impact of using psychological interventions, such as mental health counseling and support groups, on TB treatment outcomes. * = significant heterogeneity in the meta-analysis, as determined by I2 statistic. N = number of studies included within the meta-analysis. CS, cohort study; LTFU, loss to follow-up; RCT, randomized controlled trial; RR, risk ratio; TB, tuberculosis.
