Table 1

No (%) of BCG scar formations in three groups of different post vaccination tuberculin reactions among school children

Mantoux

Children

Evaluation of scar formation [n (%)]

Induration (mm)

n

Real scar (>2 mm)

Tiny scar (≤ 2 mm)

No scar (?)

Negative (0–3,9)

43

17 (39.5)*

20 (46.5)**,***

6 (14)***,***

Weak positive (4–5,9)

45

32 (71.1)

13 (28.9)**,***

0 (0)***,***

Positive (>6)

1036

1030 (99.4)*

6 (0.6)***,***

0 (0)***,***

Total

1124

1079 (96.0)

39 (3.5)

6 (0.5)

p values apply to differences among negative, weak positive and positive indurations for the same scar formation groups (real scar, tiny or not visible scar).

* < 0.01, ** p < 0.025, *** p < 0.001.

Briassoulis et al. Journal of Immune Based Therapies and Vaccines 2005 3:1   doi:10.1186/1476-8518-3-1