TABLE 3.

CHANGES IN TUBERCULIN SKIN TEST REACTIONS AND IFN-γ RESPONSES AMONG PARTICIPANTS WHO HAD EITHER TST OR QUANTIFERON-TB GOLD IN-TUBE CONVERSION^*

		BCG Scar	Student Group	TST Induration (mm)		IFN-γ Response (IU/ml)
ID No.	Age/Sex	(Y/N)	(Nursing/Medical)	Baseline	Follow-Up	Baseline	Follow-Up
	TST conversion (⩾ 6 mm increment) or QFT conversion (⩾ 0.35 IU/ml) (n = 22)
1	21/M	Y	Medical	3	10	0	0.24
2	21/M	Y	Medical	6	6	0	0.62
3	22/F	N	Medical	3	10	0	0
4	24/M	N	Medical	5	7	0.11	0.42
5	22/M	Y	Medical	3	10	0.08	0.07
6	20/F	Y	Nursing	2	3	0	0.42
7	19/F	Y	Nursing	2	1	0	0.60
8	19/F	N	Nursing	5	11	0	0
9	20/F	Y	Nursing	2	5	0.14	0.35
10	21/M	Y	Medical	5	12	0.20	0
11	21/F	Y	Nursing	1	4	0	0.57
	TST conversion (⩾ 6 mm increment) or QFT conversion (⩾ 0.70 IU/ml) (n = 11)†
12	21/M	N	Medical	6	7	0	0.97
13	21/M	Y	Medical	5	12	0	2.34
14	21/F	Y	Nursing	4	13	0	10.0
15	21/M	Y	Medical	1	10	0.27	0.93
16	19/F	Y	Medical	1	3	0.01	0.72
	TST conversion (⩾ 10 mm increment) and QFT conversion (⩾ 0.70 IU/ml) (n = 6)†
17	20/F	Y	Nursing	2	17	0	10.0
18	21/F	Y	Nursing	0	15	0.22	3.88
19	21/F	Y	Nursing	2	17	0.08	1.34
20	20/F	Y	Nursing	4	14	0.06	10.0
21	19/F	N	Nursing	2	19	0.05	10.0
22	22/F	Y	Medical	0	12	0.03	10.0

Definition of abbreviations: BCG = bacillus Calmette-Guérin; CI = confidence interval; QFT = QuantiFERON-TB Gold In-Tube assay; TST = tuberculin skin test.

^*n = 22.

^†Subset of the preceding group.