Table 1 Total serum levels of PCB according to the presence of allergic conditions
| Â | All subjects, total PCBs | |
|---|---|---|
Median (95Â % CI) | P value | |
Asthma | ||
 Non-asthmatic children | 312 (265, 765) | 0.120 |
 Asthmatic children | 620 (429, 866) |  |
Egg-specific IgE | ||
 Negative | 326 (213, 817) | 0.189 |
 Positive | 597 (427, 840) |  |
Milk-specific IgE | ||
 Negative | 435 (291, 592) | 0.028 |
 Positive | 836 (492, 1155) |  |
Wheat-specific IgE | ||
 Negative | 435 (291, 592) | 0.091 |
 Positive | 762 (448, 973) |  |
House dust mite-specific IgEa | ||
 Negative | 491 (294, 955) | 0.807 |
 Positive | 567 (246, 873) |  |