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. 2016 Dec 19;12:1–11. doi: 10.2147/COPD.S119633

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© 2017 Cleutjens et al. This work is published and licensed by Dove Medical Press Limited

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Domain-specific cognitive impairment after correcting for myocardial infarction, peripheral vascular disease, hemiplegia, clinically relevant symptoms of depression, and clinically relevant symptoms of anxiety. Proportion of patients with COPD and controls with impairments in the domains psychomotor speed (17.8% vs 3.3%; P<0.001), planning (17.8% vs 1.1%; P<0.001), working memory (32.3% vs 14.4%; P=0.035), verbal memory (33.3% vs 12.2%; P=0.002), and cognitive flexibility (43.3% vs 12.2%; P<0.001).