Table 2

Frequency of different allergy types in SLE cases and controls

AllergyTypeSLE n (%)Controls n (%)Odds ratio95% CIp Value
IgE mediated/associatedAllergic asthma4  (8.2)8  (8.2)1.000.30, 3.32NS
Hayfever6 (12.2)13 (13.3)0.900.30, 2.67NS
Allergic rhinitis (not due to pollen)8 (16.3)14 (14.3)1.380.53, 3.57NS
Hayfever and allergic rhinitis11(22.4)22 (22.4)1.000.45, 2.23NS
Atopic eczema4 (8.2)8 (8.2)1.000.29, 3.50NS
Probable IgE mediatedInsect allergy3 (6.1)11 (11.2)0.500.06, 4.47NS
Possible IgE mediatedSkin allergy2-150 8 (16.3)15 (15.3)1.160.32, 4.22NS
Food allergy 2 (4.1)2 (2.0)2.000.28, 14.2NS
Food allergy and intolerance7 (14.3)11 (11.2)1.340.47, 3.84NS
Drug allergy 3 (6.1)4 (4.1)1.820.28, 11.95NS
Drug reaction28 (57.1)20 (20.4)4.271.78, 10.23<0.001
Non-IgE mediatedContact dermatitis (nickel)14 (28.6)41 (41.8)0.610.29, 1.27NS
Contact dermatitis (make up)4 (8.2)10 (10.2)0.730.23, 2.28NS
  • 2-150 Skin allergy: non-physical urticaria, contact dermatitis excluded. Food allergy: urticaria after food ingestion (See Discussion). Drug allergy: urticaria, angioedema, and anaphylaxis only compared with drug reaction that includes any reported adverse reaction.