Table 1.

Patient characteristics

BHRA: basophil histamine release assay, HR-test: histamine release test, s-IgE: serum immunoglubulin E, M: male, F: female, NsAH: non-sedating antihistamines, SG: systemic glucocorticoids, SI: systemic immunesuppressants, My: mycophenolate mophetil, Ci: cyclosporine A, S: cyclosporine A, TG: topical steroid, A: azathioprine, COLD: chronic obstructive lung disease.

^*Systemic immunotherapy was tapered down until patients had too many symptoms at the end of the treatment cycle. ^†In some instances systemic glucocorticoids were given at the beginning of the treatment as a consequence of a severe flare up of urticaria and then tapered off.