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Demographic characteristics: Total study participants.

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posted on 11.09.2015, 04:01 by Charles S. Berenson, Ragina L. Kruzel, Catherine T. Wrona, Manoj J. Mammen, Sanjay Sethi

a p≤0.05—nonsmokers vs. ex-smokers

b p≤0.05—nonsmokers vs. active smoker

c p≤0.05—ex-smokers vs. active smokers

# GOLD classification is as detailed in the Global Initiative for Chronic Obstructive Lung Disease [24].

Data are expressed as mean±SEM.

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