Fig. 3
From: Enhancing the interferon-γ release assay through omission of nil and mitogen values
Forest plot of significant factors in the multivariate logistic regression to predict high Nil IFN-γ levels in the IGRA (QFT-GIT). Cases were divided into high- and low-IFN-γ Nil groups based on the median value (0.09 IU/mL). Cases with indeterminate results were excluded. Nil nil tube, IFN-γ interferon-γ, IGRA interferon-γ release assay, QFT-GIT QuantiFERON-TB Gold-in-Tube, TB tuberculosis