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Table 2 Classification table for HIV/TB patients, based on the assay cutoff identified in healthy volunteers

From: Urine colorimetry to detect Low rifampin exposure during tuberculosis therapy: a proof-of-concept study

 

Rifampin Cmax less than 8 mg/L

Rifampin Cmax greater than 8 mg/L

Urine assay less than 4.0 × 10−2 Abs

7

0

Urine assay greater than 4.0 × 10−2 Abs

18

14