Table 1: Demographics of study groups.

Subject groupsMean age (range) % Female
Allergen sensitivity number of casesGrades 1–4 (no. of cases)

Healthy controls 53 (25–71)73

Atopic controls 47 (18–77)79Fish 2
Dairy 3
Fruit/nut 12
Airborne 32

Anaphylaxis 45 (16–71)65Venom 44
Nut/fruit 35
Fish 14
Cereals 5
Drugs 6
Exercise 4
Latex/others 12
Grades (G)