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. 2023 Feb 20;9(1):00334-2022. doi: 10.1183/23120541.00334-2022

FIGURE 3.

FIGURE 3

Differential clinical characteristics among subjects classified as young COPD (n=65) or pre-COPD (n=78) compared to COPD (n=1012) and non-COPD (n=263) in the general population. Data on clinical characteristics were collected in >95% of individuals per group. “Exacerbations last year” accounts for at least one exacerbation requiring antibiotics, oral steroids or an emergency visit in the previous 12 months. CAT: COPD Assessment Test.