oh, I did not need to see that.   

http://www.medwirenews.com/48/104745/Respiratory_News/Asthma%C3%A2%E2%82%AC%E2%80%9Cfood_allergy_combination_linked_to_poor_outcomes.html

"US research in a group of inner-city school children with asthma shows that those with food allergies experience greater asthma-related morbidity, use more healthcare resources, and have greater lung function impairment than those without"


Here's the original article (not full access):

Food Allergy and Increased Asthma Morbidity in a School-Based Inner-City Asthma Study
The Journal of Allergy and Clinical Immunology: In Practice, Volume 1, Issue 5, Pages 479-484
James L. Friedlander, William J. Sheehan, Sachin N. Baxi, Lianne S. Kopel, Jonathan M. Gaffin, Al Ozonoff, Chunxia Fu, Diane R. Gold, Wanda Phipatanakul