TABLE 2.

Diagnosis of tuberculosis by AFB smear and Xpert MTB/RIF compared to sputum culture as the gold standard.

	AFB smear		Xpert MTB/RIF
	Sensitivity	Specificity	Sensitivity	Specificity
All subjects	86.2% (269/312)	86.7% (117/135)	97.4% (304/312)	73.3% (99/135)
History of treatment
New TB patients	83.8% (145/173)	92% (80/87)	97.1% (168/173)	77% (67/87)
Previously treated	89.2% (124/139)	77.1% (37/48)	97.8% (136/139)	66.7% (32/48)
Sites/hospitals
Sanglah	68.8% (11/16)	100% (9/9)	87.5% (14/16)	88.9% (8/9)
Wahidin Sudirohusodo	83.3% (10/12)	100% (8/8)	91.7% (11/12)	62.5% (5/8)
Kariadi	90% (81/90)	76.9% (10/13)	100% (90/90)	61.5% (8/13)
Soetomo	94.3% (100/106)	64.7% (11/17)	96.2% (102/106)	52.9% (9/17)
Sardjito	50% (9/18)	93.0% (53/57)	100% (18/18)	84.2% (48/57)
Persahabatan	87.5% (49/56)	79.2% (19/24)	98.2% (55/56)	58.3% (14/24)
Adam Malik	64.3% (9/14)	100% (7/7)	100% (14/14)	100% (7/7)