Table 1.

Performance of MTBDRplus testing on sputum samples compared with culture-based drug susceptibility testing (DST) results. INH = isoniazid. MDR-TB = multidrug-resistant TB. NPV = negative predictive value. OFX = ofloxacin/moxifloxacin. PPV = positive predictive value. RIF = rifampin.

	INH		RIF		OFX		MDR-TB
	%	95% CI	%	95% CI	%	95% CI	%	95% CI
Sensitivity	88	80–94	69	39–91	83	36–100	80	44–97
Specificity	97	94–99	100	98–100	97	94–99	100	98–100
PPV	93	85–97	90	55–100	50	19–81	89	52–100
NPV	96	92–98	99	97–100	99	97–100	99	98–100