Fig. 3

The association between three categories of BCG vaccination skin reaction (wheal, bulge, or no reaction) registered immediately after neonatal BCG vaccination and the probability (%) of developing a scar at 13 months of age. The IRR of getting a scar preceded by a ‘bulge’ (with ´wheal´ as reference), was 0.90; the IRR of getting a scar preceded by ´ no reaction ´ was 0.57, *indicates p = 0.03