Fig 1.
Flow diagram of assessment of studies identified in meta-analysis.
Table 1.
Studies evaluating the role of mycobacteria in sarcoidosis using immunology analysis.
Table 2.
The Newcastle-Ottawa Scale (NOS) for assessing the quality of nonrandomized studies.
Fig 2.
Forest plot of trials analyzing the positivity incidence of the T-cell response to M. tuberculosis antigens in sarcoidosis patients versus controls with PPD- and unknown PPD statuses.
Fig 3.
Forest plot of trials analyzing the positivity incidence of T-cell response to M. tuberculosis antigens in sarcoidosis patients versus PPD+ controls (LTBI).
LTBI = latent tuberculosis infection.
Fig 4.
Funnel plot assessing publication bias.
a. Funnel plot for the studies on the T-cell response to M. tuberculosis antigens with controls of PPD- or unknown PPD status; b. Funnel plot for the studies on the T-cell response to M. tuberculosis antigens with PPD+ controls; c. Funnel plot for studies on the humoral response to M. tuberculosis antigens. SA = sarcoidosis.
Fig 5.
Forest plot of trials analyzing the positivity incidence of the humoral response to M. tuberculosis antigens in sarcoidosis patients versus controls.