Table 3. Predictive Value of IgE Tests, Based on OFC Results20,78.
| Food | >95% Positive | ∼75% Positive | ∼50% Negative | |||
|---|---|---|---|---|---|---|
|
|
|
|
||||
| SPT | sIgE | SPT | sIgE | SPT | sIgE | |
| Egg white | ≥7 | ≥7 | ≤3 | ≤2 | ||
| ≥ 2 if age <2 y | ||||||
| Cow's milk | ≥8 | ≥15 | ≤2 | |||
| ≥5 if age <1 y | ||||||
| Peanut | ≥8 | ≥14 | ≤3 | ≤2 (history of prior reaction) | ||
| ≤5 (no history of prior reaction) | ||||||
| Fish | ≥20 | |||||
| Soybean | ≥30 | |||||
| Wheat | ≥26 | |||||