The Feasibility of Xpert MTB/RIF Testing to Detect Rifampicin Resistance among Childhood Tuberculosis for Prevalence Surveys in Northern China

Table 3

Comparison of costs (USD) on detecting RIF-resistant childhood TB patients from different specimen types.

		Specimen types
		CSF	GLA	BALF	Sputum	Average
Gold standard 1 = solid culture	Per positive case
	Xpert	276.00	100.23	125.30	111.28	131.86
	Per RIF- case
	Xpert	1932.02	1202.78	1628.96	890.25	1371.36
Gold standard 2 = clinical diagnosis	Per positive case
	Solid culture	72.88	36.30	40.96	37.31	43.84
	Xpert	120.75	37.01	44.03	42.39	49.33
	Per RIF- case
	Solid culture	992.44	783.28	1009.96	573.11	828.41
	Xpert	966.01	601.39	814.48	890.25	761.86

RIF-R: rifampicin-resistant.