Decreased COPD prevalence in Sweden after decades of decrease in smoking.

Respir Res · 2020 · PMC7594463 · PMID 33115506

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a decreasing trendno p-value reported

As found by others [ 43 , 44 ], under-diagnosis of COPD was still huge in 2009, although our results show a decreasing trend regarding under-diagnosis.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.