Honeybee Venom Immunotherapy: A Comparative Study Using Purified and Nonpurified Aqueous Extracts in Patients with Normal Basal Serum Tryptase Concentrations

Table 2

Demographic and clinical data of patients included in the study.

	Group A (Nonpurified); 𝑁=40	Group B (purified); 𝑁=40	P values
Sex (male/female)	34/6	30/10	0.8
Age, years, mean (SD)	42 (17)	42 (16)	0.8
Mueller classification; (Reaction to HB sting)
Grade I	0	0	0.7
Grade II	7	9
Grade III	15	13
Grade IV	18	18