| http://www.w3.org/ns/prov#value | - A number of other factors are less closely linked to COPD. The risk is greater in those who are poor, although it is not clear if this is due to poverty itself or other risk factors associated with poverty, such as air pollution and malnutrition.[1] There is tentative evidence that those with asthma and airway hyperreactivity are at increased risk of COPD.[1] Birth factors such as low birth weight
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