Figure 1.
Schematic presentation of the recruitment process of the study subjects.
Figure 2.
Distribution of total IgE levels in the study subjects by age.
Figure 3.
Receiver-operator characteristic (ROC) curves indicating the sensitivity and specificity of total IgE levels for predicting atopy (a), asthma (b), rhinitis (c), or eczema (d).
Figure 4.
The sensitivity, specificity, and Youden's index of total IgE levels at different cutoff points as a diagnostic test for atopy (a), asthma (b), rhinitis (c), or eczema (d).
The Youden's index, the sum of sensitivity and specificity minus one, is a commonly used measurement of overall diagnostic effectiveness.