Table 9. Impact of the physicians’ clinical suspicion of TB (CSTB) on the sensitivity of smear microscopy in tuberculosis patients according to disease localization and HIV status.

	Pulmonary TB					Extrapulmonary TB
	TB diagnosis*CSTB LowCSTB HighCSTB Very High				p value “TB diagnosis vs very high"	TB diagnosisCSTB LowCSTB HighCSTB Very High				p value “TB diagnosis vs very high"
	N of AFB-positive/N of patients within the group					N of AFB-positive/N of patients within the group
			(%)				(%)
HIV-infected	38/90	0/1	21/56	18/32	0.2	3/31	0/2	2/19	1/10	1
	(42.2)	(0)	(37.5)	(56.2)		(9.7%)	(0)	(10.5)	(10.0)
HIV-infected	205/270	0/1	39/83	167/186	0.0002	9/46 (	-	7/37	2/9	1
	(75.9)	(0)	(47.0)	(89.8)		19.6%)		(18.9)	(22.2)
HIV-unknown	180/293	0/5	48/134	133/154	0.0001	13/67	0/2	11/58	2/7	0.6
	(61.4)	(0)	(26.1)	(74.8)		(19.4%)	(0)	(19.0)	(28.6)
Total	423/653	0/7	107/273	318/372	0.0001	25/144	0/4	20/114	5/26	0.7
	(64.8)	(0)	(39.2)	(85.5)		(16.6)	(0)	(17.5)	(19.2)

TB: tuberculosis; AFB: acid fast bacilli. *TB diagnosis by SM within the group considered; CSTB: clinical suspicion of TB