Non-allergic asthma

asthma: A bronchial disease that is characterized by chronic inflammation and narrowing of the airways, which is caused by a combination of environmental and genetic factors resulting in recurring periods of wheezing (a whistling sound while breathing), chest tightness, shortness of breath, mucus production and coughing. The symptoms appear due to a variety of triggers such as allergens, irritants, respiratory infections, weather changes, exercise, stress, reflux disease, medications, foods and emotional anxiety.

Endpoint definition

Name ASTHMA_NONALLERG
Long name Non-allergic asthma
Conditions required !(L12_ATOPIC|ALLERG_RHINITIS|H7_ALLERGICCONJUNCTIVITIS|FOOD_ALLERGY|Z21_DESEN_ALLERGE|POLLENALLERG)
Include NONALLERG_ASTHMA
First defined in version DF2

Summary Statistics

Key figures

All Female Male
Number of individuals 3155 1821 1334
Unadjusted prevalence (%) 1.45 1.48 1.42
Mean age at first event (years) 51.55 50.49 53.00
Case fatality at 5-years (%) 4.12 2.69 6.07

Longitudinal metrics

All Female Male
Median nb. of events per indiv. 3.0 3.0 3.0
Recurrence at 6 months (%) 67.70 69.57 64.88

Survival analyses between endpoints

Plot

before Non-allergic asthma
after Non-allergic asthma

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Drugs most likely to be purchased after Non-allergic asthma