Table 2. Tuberculosis prevalence and number needed to test (NNT) to identify one TB case among 940 people newly diagnosed with HIV, stratified by characteristics.

Characteristic		All	Number of TB cases	TB prevalence, % (95% CI)		p-value	Number needed to test, NNT
All patients		940	131	14	(12–16)		7
Age	≤35 years	510	63	12	(10–16)	0.13	8
	>35 years	430	68	16	(13–20)		7
Sex	Female	641	72	11	(9–14)	<0.001	9
	Male	299	59	20	(16–25)		5
CD4 count, cells/μL	>350	387	25	7	(4–9)	<0.001	14
	200–349	212	26	12	(9–17)		8
	100–199	128	24	19	(13–26)		5
	<100	213	56	26	(21–33)		4
WHO stage	1 or 2	539	49	9	(7–12)	<0.001	11
	3 or 4	282	73	26	(21–31)		4
Number of symptoms*	No symptoms	128	10	8	(4–14)	<0.001	13
	Any 1 symptom	812	121	15	(13–18)		7
	Any 2 symptoms	523	104	20	(17–24)		5
	Any 3 symptoms	245	69	28	(23–34)		4
	All 4 symptoms	75	33	44	(33–55)		2
Symptom	Current cough	448	88	20	(16–24)	<0.001	5
	No current cough	492	43	9	(7–12)		11
	Cough lasting ≥2 weeks	228	49	22	(17–27)	0.34	5
	Cough lasting <2 weeks	220	39	18	(13–23)		6
	Current fever	220	54	25	(19–31)	<0.001	4
	No current fever	720	77	11	(9–13)		9
	Night sweats, any	395	81	21	(17–25)	<0.001	5
	No night sweats	545	50	9	(7–12)		11
	Weight loss	592	104	18	(15–21)	<0.001	6
	No weight loss	348	27	8	(5–11)		13

*Symptoms including current cough, fever, night sweats, weight loss