IGHE and asthma: Moreover, when the asthma patients of that study were tested for six specific IgEs against indoor aeroallergens [cat and dog dander, dust mite (D. farinae and D. pteronyssinus), German cockroach and mold mix] they were found to be more frequently positive at least to one specific IgE when compared to controls (49.9% of asthma patients vs. 30.3% of controls, p < 0.05) (7).