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Sample Topic: Asthma

Asthma : Last revised in December 2013


What are the risk factors for asthma?

  • Various risk factors may increase the likelihood of development or persistence of asthma:
    • Family history of atopic disease (for example asthma, eczema, allergic rhinitis, or allergic conjunctivitis).
    • Co-existence of atopic disease.
    • Male sex (for pre-pubertal asthma) and female sex (for persistence of asthma from childhood to adulthood).
    • Bronchiolitis in infancy.
    • Parental smoking, including perinatal exposure to tobacco smoke.
    • Low birthweight (associated with intrauterine growth retardation).
    • Premature birth (especially in extreme-preterm infants who required ventilatory support, with consequent chronic lung disease of prematurity).
[SIGN and BTS, 2011]