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. 2016 Aug 10;11(8):e0160062. doi: 10.1371/journal.pone.0160062

Table 1. Baseline Xpert Ct value to predict time to negativity status at different time points.

TTN category
Baseline values only to predict TTN at week Sensitivity (TB negative) Specificity (TB positive)
4 88.2% (15/17) 51.4%(38/74)
8 78.9% (31/53) 78.9% (30/38)
24 75.9% (63/83) 62.5% (5/8)