Diagnostic potential of individual markers detected in in overnight culture supernatants.

Median levels (and ranges in parenthesis) of analytes detected in overnight (our in-house) whole blood culture supernatants and accuracy in the diagnosis of TB disease. All analyte levels are in pg/ml except for CRP, SAA and SAP (ng/ml). P-values were calculated using the Mann Whitney U test. AUC = Area under the receiver operator characteristics curve. 95% CI = 95% confidence interval. The values shown for the the different antigens were corrected for background by subtraction of the unstimulated levels.