Specific IgE and skin prick tests to diagnose allergy to fresh and baked cow's milk according to age: a systematic review.

None of the cut-offs proposed in the literature can be used to definitely confirm cow's milk allergy diagnosis, either to fresh pasteurized or to baked milk. However, in children < 2 years, cut-offs for specific IgE or SPT seem to be more homogeneous and may be proposed.