Table 6.

Clinical histories, PPD, and TB IgG antibody results of Quantiferon-positive patients with physician-suspected TB^a

Patient no.	Age (yr)	Country of origin	PPD	BCG vaccine	Chest X-ray	TB IgG result	TB IgG interp	History
1	70	China	POS	Yes	POS	2.111	POS	Chronic cough; chest X-ray suspicious for TB
2	16	Somalia	POS	No	POS	1.065	POS	Pulmonary nodules on chest X-ray; no sputum production
3	55	U.S.	ND	Yes	POS	1.000	POS	Bronchiectasis on chest X-ray; possible exposure to active TB
4	78	U.S.	ND	No	UNK	0·.80	POS	Rapid 15-lb wt loss; exposure to active TB years ago
5	51	India	POS	No	UNK	0.692	POS	Serpiginous chorioretinitis suspicious for ocular TB
6	45	U.S.	ND	No	POS	0.940	POS	Empyema and necrotizing pneumonia on chest X-ray
7	40	Mexico	POS	UNK	POS	0.554	POS	Treated for TB meningoencephalitis in past; new onset hematuria
8	70	Pakistan	UNK	UNK	POS	0.390	NEG	Chronic cough; chest X-ray suspicious for TB
9	64	Mexico	POS	UNK	NEG	0.273	NEG	Suspicious for ocular TB
10	82	U.S.	ND	No	NEG	0.141	NEG	Suspected tuberculous peritonitis; granulomas on biopsy; 25-lb wt loss;
11	50	U.S.	ND	No	UNK	0.138	NEG	Question of disseminated TB; numerous cutaneous lesions; necrotizing granulomas; AFB negative
12	61	U.S.	ND	No	UNK	0.103	NEG	Treated for TB as a child; suspicious for ocular TB
13	92	U.S.	NEG	No	POS	0.099	NEG	Rapid 10-lb wt loss with fatigue; chest CT shows lesions consistent with TB
14	86	U.S.	POS	No	POS	0.085	NEG	Thoracentesis showed lymphocytic exudate consistent with active TB; end-stage renal disease
15	24	Mexico	ND	Yes	POS	0.078	NEG	Pulmonary symptoms, cavitary lesions on chest X-ray; negative smear for AFB
16	22	Ethiopia	POS	UNK	POS	0.063	NEG	9-Week history of nonproductive cough; no sputum production

^aTB, tuberculosis; ADD, amplified direct detection; POS, positive; NEG, negative; ND, not done; UNK, unknown; AFB, acid-fast bacilli; PPD, purified protein derivative; interp, interpretation; CT, computed tomography.