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. 2020 Feb 14;69(1):1–11. doi: 10.15585/mmwr.rr6901a1

FIGURE.

This figure is a flow chart showing the studies included in the existing systematic review search and the updated search. Of the 3,092 identified for the existing review from database inception through May 2017, the full text was ordered for 113. A total of 61 of these were identified as latent tuberculosis infection (LTBI) treatment studies and included. Of the 20 identified for the updated search from June 2017–August 2018, full text was ordered for three studies, two of which were identified as LTBI studies and included. A total of 63 studies combined from the existing systematic review search and the updated search were included.

Systematic literature review search process* for latent tuberculosis infection treatment regimens recommended by the National Tuberculosis Controllers Association and CDC, 2020

Abbreviation: LTBI = latent tuberculosis infection.

* Existing systematic review search: the results from the 2017 analysis were published, citing all primary studies included in the analysis (Zenner D, Beer N, Harris RJ, Lipman MC, Stagg HR, van der Werf MJ. Treatment of latent tuberculosis infection: an updated network meta-analysis. Ann Intern Med 2017;167:248–5). Updated search: analyses included combined data from the studies included in the previous review and articles identified during an updated search for studies published during June 2017–August 2018.