Performance outcomes of ADA, microbiological investigations, a nucleic-acid-amplification-test [NAAT] and unstimulated IFN-γ levels for the diagnosis of TB pleural effusion in 74 TB suspects using the <i>definite and non-TB</i> groups.

( ; ) = 95% CI. **Cut-point used in day-to-day clinical practice in Cape Town, South Africa, where the test guides the institution of anti-TB treatment. AUC = area under the ROC curve. ***AUC-derived cut-point. #cut-point with a high NPV. RLU = relative light units detectable using a luminometer.