COPD in never-smokers: BOLD unravels some of the mystery
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Never-smokers make up >25% of the people with COPD in some studies. Who are these people? The BOLD study gathered data from 14 countries (in the U.S., Europe, Turkey, China, South Africa, Philippines and Australia), including spirometry and questionnaires on environmental exposures and symptoms from 10,000 people. Of the 4,291 never-smokers, 4% had ATS-defined COPD (5.6% by GOLD). Impressively, these never-smokers comprised 20% of the moderate-to-severe (GOLD II+) COPD cases, and 81% of them were undiagnosed. More than two-thirds were women.
COPD in never-smokers: BOLD unravels some of the mystery
COPD in never-smokers: BOLD unravels some of…
COPD in never-smokers: BOLD unravels some of the mystery
Never-smokers make up >25% of the people with COPD in some studies. Who are these people? The BOLD study gathered data from 14 countries (in the U.S., Europe, Turkey, China, South Africa, Philippines and Australia), including spirometry and questionnaires on environmental exposures and symptoms from 10,000 people. Of the 4,291 never-smokers, 4% had ATS-defined COPD (5.6% by GOLD). Impressively, these never-smokers comprised 20% of the moderate-to-severe (GOLD II+) COPD cases, and 81% of them were undiagnosed. More than two-thirds were women.