The condition is rare. 1999's Difficult<unk>  estimates a prevalence of approximately 0.05%<unk>  sufferers among the<unk> tic population. Though found in all ages, it is most commonly found in individuals between the ages of 18 and 55; it is present in both sexes, though type 1 has been diagnosed in three times as many women as men. Hospitalization is more frequent for type 1 than type 2.
Brittle asthma
Thunderstorm asthma
Yokkaichi asthma
Reactive airway disease
Cardiac asthma
Asthma
Mineral dust airway disease
Occupational asthma