Allergen

No positive skin test

Percent

Mold

465

67.1

HDM

411

59.3

Grass

168

24.2

Bermuda

162

20.4

Trees

135

18.2

Mugworth

120

17.3

Chenopod

99

14.3

Plantain

87

12.6

Feather

75

10.8

Cat

72

10.4

Dog

51

7.4

Horse

15

2.2