Risk factors for asthma death?

Comorbidities ( COPD, Emphysema, sensitivities to ASA, GERD, obesity, OSA, rhinitis, chronic stress, sensitive to sulfites, bronchopulmonary aspergillosis) Psych, low class, IVDU, difficulty perceiving obstruction, previous intubation, > 2 hospitalizations/ yr, > 3 ER visits / yr, > 2 inhalers/mo, sensitivity to alternaria