Risk factors for asthma
Risk factors for development and expression of asthma can be:
- host factors
- genetics – genes which predispose to atopy, airway hyperresponsiveness, airway inflammation
- obesity – prevalence and incidence of asthma is increased in obese people BMI >30 kg/m2
- sex – during childhood, boys have a higher risk of getting asthma while in adulthood the prevalence of asthma is greater in women than in men
- environmental factors
- allergens
- indoor – domestic mites, furred animals (dogs, cats, mice), cockroaches, fungi, molds, yeasts
- outdoor – pollen, molds
- occupation sensitizers and allergens e.g. – flour, laboratory rodents, paints
- infections – majority viral
- microbiome
- exposure to tobacco smoke – passive and active smoking
- outdoor and indoor air pollution
- diet
- paracetamol
- stress (1)
- allergens
Reference:
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