Table 5 Multivariable logistic regression model of predictors of TST positivity in children

Age

1.22 (1.13 – 1.32), p < 0.001

TB contact score

1.21 (1.09 – 1.34), p < 0.001

Ascaris IgE positive

0.55 (0.28 – 1.07), p = 0.08

Model 2: Interaction between Helminth Positive/Negative and Age

TB contact Score

1.22 (1.10 - 1.34)

Age effect

IgE negative

1.17 (1.08 - 1.27)

IgE positive

1.44 (1.21 - 1.73)

IgE effect

25% age

0.18 (0.05 - 0.67)

50% age

0.30 (0.11 - 0.78)

75% age

0.67 (0.32 - 1.39)