Table 1

Comparison of TST measurements using 5 and 10 TU tuberculin

5 TU dose
10 TU dose0 mm1–9 mm10–14 mm15–19 mm⩾20 mm
0 mm31  (24)1  (1)000
1–9 mm11 (9)42 (33)3  (2)00
10–14 mm017 (13)14 (11)1 (0.8)0
15–19 mm002 (1.5)3 (2)0
⩾20 mm001 (0.8)2 (1.5)0
  • Values are no. (%).