TNF and tuberculosis: These percentiles are 90% sensitivity and 70% specificityfor detecting the TB disease.72 The cutoffvalue reported for TB-specific TNF-α within the manuscript isthe suggested 5 pg/mL, with corresponding sensitivities and specificitiesof 85% and 70%.73 A noteworthy observationis that the cutoff value may be selected based on the goals and contextof the study one wishes to undertake since the percentile combinationdirects these.74