Table 2.

Positive percentages of tuberculin skin test and ETB-Feron

Age group	Number of persons	TST		Positive percentage TST	ETB-Feron		Positive percentage ETB-Feron	Difference in result of positive percentage between TST and ETB-Feron
		Positive	Negative		Positive	Negative
1-5	11	2	9	18	5	6	45	27
6-10	26	5	21	19	8	18	31	12
11-15	23	5	18	22	10	13	43	22
16-18	17	5	12	29	8	9	47	18
Total	77	17	60		31	46

TST: Tuberculin skin test